diff --git a/elm.json b/elm.json
index 91ee75ee..a207cee7 100644
--- a/elm.json
+++ b/elm.json
@@ -71,6 +71,7 @@
         "Nri.Ui.Tabs.V4",
         "Nri.Ui.Text.V2",
         "Nri.Ui.Text.V3",
+        "Nri.Ui.Text.V4",
         "Nri.Ui.Text.Writing.V1",
         "Nri.Ui.TextArea.V3",
         "Nri.Ui.TextArea.V4",
diff --git a/src/Nri/Ui/Heading/V1.elm b/src/Nri/Ui/Heading/V1.elm
index c6fc17e3..cbfd0352 100644
--- a/src/Nri/Ui/Heading/V1.elm
+++ b/src/Nri/Ui/Heading/V1.elm
@@ -5,8 +5,17 @@ module Nri.Ui.Heading.V1 exposing
     , view
     )
 
-{-| Headings such as you'd find in Nri.Ui.Text.V3, but customization options for
-accessibility.
+{-| Headings with customization options for accessibility.
+
+
+## Understanding spacing
+
+  - All text styles have a specific line-height. This is set so that when text
+    in the given style is long enough to wrap, the spacing between wrapped lines
+    looks good.
+  - No heading styles have padding.
+  - **Heading styles** do not have margin. It is up to the caller to add
+    appropriate margin to the layout.
 
 @docs Heading, heading
 
diff --git a/src/Nri/Ui/Text/V3.elm b/src/Nri/Ui/Text/V3.elm
index 6af295c1..82445342 100644
--- a/src/Nri/Ui/Text/V3.elm
+++ b/src/Nri/Ui/Text/V3.elm
@@ -46,12 +46,9 @@ make a new Text version, please remove them.
 
 -}
 
-import Css exposing (..)
-import Html.Styled exposing (..)
-import Html.Styled.Attributes exposing (css)
-import Nri.Ui.Colors.V1 exposing (..)
-import Nri.Ui.Fonts.V1 as Fonts
+import Html.Styled exposing (Html)
 import Nri.Ui.Heading.V1 as Heading
+import Nri.Ui.Text.V4 as V4
 
 
 {-| This is a Page Heading.
@@ -97,117 +94,43 @@ smallHeading content =
 {-| This is some medium body copy.
 -}
 mediumBody : List (Html msg) -> Html msg
-mediumBody content =
-    p
-        [ paragraphStyles
-            { font = Fonts.baseFont
-            , color = gray20
-            , size = 18
-            , lineHeight = 28
-            , weight = 400
-            , margin = 10
-            }
-        ]
-        content
+mediumBody =
+    V4.mediumBody
 
 
 {-| This is some small body copy.
 -}
 smallBody : List (Html msg) -> Html msg
-smallBody content =
-    p
-        [ paragraphStyles
-            { font = Fonts.baseFont
-            , color = gray20
-            , size = 15
-            , lineHeight = 23
-            , weight = 400
-            , margin = 7
-            }
-        ]
-        content
+smallBody =
+    V4.smallBody
 
 
 {-| This is some small body copy but it's gray.
 -}
 smallBodyGray : List (Html msg) -> Html msg
-smallBodyGray content =
-    p
-        [ paragraphStyles
-            { font = Fonts.baseFont
-            , color = gray45
-            , size = 15
-            , lineHeight = 23
-            , weight = 400
-            , margin = 7
-            }
-        ]
-        content
-
-
-paragraphStyles config =
-    css
-        [ config.font
-        , fontSize (px config.size)
-        , color config.color
-        , lineHeight (px config.lineHeight)
-        , fontWeight (int config.weight)
-        , padding zero
-        , textAlign left
-        , margin4 (px 0) (px 0) (px config.margin) (px 0)
-        , lastChild
-            [ margin zero
-            ]
-        ]
+smallBodyGray =
+    V4.smallBodyGray
 
 
 {-| This is a little note or caption.
 -}
 caption : List (Html msg) -> Html msg
-caption content =
-    p
-        [ paragraphStyles
-            { font = Fonts.baseFont
-            , color = gray45
-            , size = 13
-            , lineHeight = 18
-            , weight = 400
-            , margin = 5
-            }
-        ]
-        content
+caption =
+    V4.caption
 
 
 {-| User-generated text.
 -}
 ugMediumBody : List (Html msg) -> Html msg
 ugMediumBody =
-    p
-        [ css
-            [ Fonts.quizFont
-            , fontSize (px 18)
-            , lineHeight (px 30)
-            , whiteSpace preLine
-            , color gray20
-            , margin zero
-            ]
-        ]
+    V4.ugMediumBody
 
 
 {-| User-generated text.
 -}
 ugSmallBody : List (Html msg) -> Html msg
 ugSmallBody =
-    p
-        [ css
-            [ Fonts.quizFont
-            , fontSize (px 16)
-            , lineHeight (px 25)
-            , whiteSpace preLine
-            , color gray20
-            , margin zero
-            ]
-        ]
+    V4.ugSmallBody
 
 
 {-| Eliminate widows (single words on their own line caused by
@@ -215,29 +138,5 @@ wrapping) by inserting a non-breaking space if there are at least two
 words.
 -}
 noWidow : String -> String
-noWidow inputs =
-    let
-        -- this value is a unicode non-breaking space since Elm
-        -- doesn't support named character entities
-        nbsp =
-            "\u{00A0}"
-
-        words =
-            String.split " " inputs
-
-        insertPoint =
-            List.length words - 1
-    in
-    words
-        |> List.indexedMap
-            (\i word ->
-                if i == 0 then
-                    word
-
-                else if i == insertPoint && insertPoint > 0 then
-                    nbsp ++ word
-
-                else
-                    " " ++ word
-            )
-        |> String.join ""
+noWidow =
+    V4.noWidow
diff --git a/src/Nri/Ui/Text/V4.elm b/src/Nri/Ui/Text/V4.elm
new file mode 100644
index 00000000..210ff253
--- /dev/null
+++ b/src/Nri/Ui/Text/V4.elm
@@ -0,0 +1,193 @@
+module Nri.Ui.Text.V4 exposing
+    ( caption, mediumBody, smallBody, smallBodyGray
+    , ugMediumBody, ugSmallBody
+    , noWidow
+    )
+
+{-| Changes from V3:
+
+  - Removes Headings (they now live in Nri.Ui.Heading.V1)
+
+
+## Understanding spacing
+
+  - All text styles have a specific line-height. This is set so that when text in the given style
+    is long enough to wrap, the spacing between wrapped lines looks good.
+  - No text styles have padding.
+  - **Heading styles** do not have margin. It is up to the caller to add appropriate margin to the layout.
+  - **Paragraph styles** only have bottom margin, but with **:last-child bottom margin set to zero**.
+    This bottom margin is set to look good when multiple paragraphs of the same style follow one another.
+      - If you want content after the paragraph and don't want the margin, put the paragraph in a `div` so that it will be the last-child, which will get rid of the bottom margin.
+  - **User-authored content blocks** preserve line breaks and do not have margin.
+
+
+## Paragraph styles
+
+@docs caption, mediumBody, smallBody, smallBodyGray
+
+
+## User-authored content blocks:
+
+@docs ugMediumBody, ugSmallBody
+
+
+## Modifying strings to display nicely:
+
+@docs noWidow
+
+-}
+
+import Css exposing (..)
+import Html.Styled exposing (..)
+import Html.Styled.Attributes exposing (css)
+import Nri.Ui.Colors.V1 exposing (..)
+import Nri.Ui.Fonts.V1 as Fonts
+
+
+{-| This is some medium body copy.
+-}
+mediumBody : List (Html msg) -> Html msg
+mediumBody content =
+    p
+        [ paragraphStyles
+            { font = Fonts.baseFont
+            , color = gray20
+            , size = 18
+            , lineHeight = 28
+            , weight = 400
+            , margin = 10
+            }
+        ]
+        content
+
+
+{-| This is some small body copy.
+-}
+smallBody : List (Html msg) -> Html msg
+smallBody content =
+    p
+        [ paragraphStyles
+            { font = Fonts.baseFont
+            , color = gray20
+            , size = 15
+            , lineHeight = 23
+            , weight = 400
+            , margin = 7
+            }
+        ]
+        content
+
+
+{-| This is some small body copy but it's gray.
+-}
+smallBodyGray : List (Html msg) -> Html msg
+smallBodyGray content =
+    p
+        [ paragraphStyles
+            { font = Fonts.baseFont
+            , color = gray45
+            , size = 15
+            , lineHeight = 23
+            , weight = 400
+            , margin = 7
+            }
+        ]
+        content
+
+
+paragraphStyles config =
+    css
+        [ config.font
+        , fontSize (px config.size)
+        , color config.color
+        , lineHeight (px config.lineHeight)
+        , fontWeight (int config.weight)
+        , padding zero
+        , textAlign left
+        , margin4 (px 0) (px 0) (px config.margin) (px 0)
+        , lastChild
+            [ margin zero
+            ]
+        ]
+
+
+{-| This is a little note or caption.
+-}
+caption : List (Html msg) -> Html msg
+caption content =
+    p
+        [ paragraphStyles
+            { font = Fonts.baseFont
+            , color = gray45
+            , size = 13
+            , lineHeight = 18
+            , weight = 400
+            , margin = 5
+            }
+        ]
+        content
+
+
+{-| User-generated text.
+-}
+ugMediumBody : List (Html msg) -> Html msg
+ugMediumBody =
+    p
+        [ css
+            [ Fonts.quizFont
+            , fontSize (px 18)
+            , lineHeight (px 30)
+            , whiteSpace preLine
+            , color gray20
+            , margin zero
+            ]
+        ]
+
+
+{-| User-generated text.
+-}
+ugSmallBody : List (Html msg) -> Html msg
+ugSmallBody =
+    p
+        [ css
+            [ Fonts.quizFont
+            , fontSize (px 16)
+            , lineHeight (px 25)
+            , whiteSpace preLine
+            , color gray20
+            , margin zero
+            ]
+        ]
+
+
+{-| Eliminate widows (single words on their own line caused by
+wrapping) by inserting a non-breaking space if there are at least two
+words.
+-}
+noWidow : String -> String
+noWidow inputs =
+    let
+        -- this value is a unicode non-breaking space since Elm
+        -- doesn't support named character entities
+        nbsp =
+            "\u{00A0}"
+
+        words =
+            String.split " " inputs
+
+        insertPoint =
+            List.length words - 1
+    in
+    words
+        |> List.indexedMap
+            (\i word ->
+                if i == 0 then
+                    word
+
+                else if i == insertPoint && insertPoint > 0 then
+                    nbsp ++ word
+
+                else
+                    " " ++ word
+            )
+        |> String.join ""
diff --git a/styleguide-app/Examples/Button.elm b/styleguide-app/Examples/Button.elm
index 6d4180ce..8cbe92a0 100644
--- a/styleguide-app/Examples/Button.elm
+++ b/styleguide-app/Examples/Button.elm
@@ -16,7 +16,6 @@ import Nri.Ui.AssetPath exposing (Asset)
 import Nri.Ui.Button.V9 as Button
 import Nri.Ui.Icon.V5 as Icon
 import Nri.Ui.Svg.V1 as NriSvg exposing (Svg)
-import Nri.Ui.Text.V3 as Text
 
 
 {-| -}
diff --git a/styleguide-app/Examples/ClickableText.elm b/styleguide-app/Examples/ClickableText.elm
index 95e10511..27e929b0 100644
--- a/styleguide-app/Examples/ClickableText.elm
+++ b/styleguide-app/Examples/ClickableText.elm
@@ -15,7 +15,7 @@ import ModuleExample as ModuleExample exposing (Category(..), ModuleExample, Mod
 import Nri.Ui.ClickableText.V2 as ClickableText exposing (Size(..))
 import Nri.Ui.Icon.V5 as Icon
 import Nri.Ui.Svg.V1 as NriSvg exposing (Svg)
-import Nri.Ui.Text.V3 as Text
+import Nri.Ui.Text.V4 as Text
 
 
 {-| -}
diff --git a/styleguide-app/Examples/Icon.elm b/styleguide-app/Examples/Icon.elm
index b2e9f433..0441a23f 100644
--- a/styleguide-app/Examples/Icon.elm
+++ b/styleguide-app/Examples/Icon.elm
@@ -13,8 +13,9 @@ import Html.Styled as Html exposing (Html)
 import Html.Styled.Attributes exposing (css, style, title)
 import ModuleExample exposing (Category(..), ModuleExample)
 import Nri.Ui.Colors.V1 exposing (..)
+import Nri.Ui.Heading.V1 as Heading
 import Nri.Ui.Icon.V5 as Icon
-import Nri.Ui.Text.V3 as Text
+import Nri.Ui.Text.V4 as Text
 
 
 {-| -}
@@ -128,7 +129,10 @@ viewIconSection :
     -> Html msg
 viewIconSection headerText icons =
     Html.section []
-        [ Text.subHeading [ Html.text headerText ]
+        [ Heading.heading [ Html.text headerText ]
+            |> Heading.withDocumentLevel Heading.H2
+            |> Heading.withVisualLevel Heading.Subhead
+            |> Heading.view
         , Html.div [ css [ Css.displayFlex, Css.flexWrap Css.wrap ] ]
             (List.map viewIcon icons)
         ]
diff --git a/styleguide-app/Examples/Text.elm b/styleguide-app/Examples/Text.elm
index 52fa2d65..b1f4d2ce 100644
--- a/styleguide-app/Examples/Text.elm
+++ b/styleguide-app/Examples/Text.elm
@@ -9,13 +9,13 @@ module Examples.Text exposing (example)
 import Html.Styled as Html
 import ModuleExample as ModuleExample exposing (Category(..), ModuleExample)
 import Nri.Ui.Heading.V1 as Heading exposing (DocumentLevel(..), VisualLevel(..), heading, withDocumentLevel, withVisualLevel)
-import Nri.Ui.Text.V3 as Text
+import Nri.Ui.Text.V4 as Text
 
 
 {-| -}
 example : ModuleExample msg
 example =
-    { name = "Nri.Ui.Text.V3 (with headers from Nri.Ui.Heading.V1)"
+    { name = "Nri.Ui.Text.V4 (with headers from Nri.Ui.Heading.V1)"
     , category = Text
     , content =
         let
@@ -44,13 +44,19 @@ example =
             |> withDocumentLevel H4
             |> Heading.view
         , Html.hr [] []
-        , Text.heading [ Html.text "Paragraph styles" ]
+        , heading [ Html.text "Paragraph styles" ]
+            |> withVisualLevel Top
+            |> withDocumentLevel H2
+            |> Heading.view
         , Text.mediumBody [ Html.text <| "This is a mediumBody. " ++ longerBody ]
         , Text.smallBody [ Html.text <| "This is a smallBody. " ++ longerBody ]
         , Text.smallBodyGray [ Html.text <| "This is a smallBodyGray. " ++ longerBody ]
         , Text.caption [ Html.text <| "This is a caption. " ++ longerBody ]
         , Html.hr [] []
-        , Text.heading [ Html.text "Paragraph styles for user-authored content" ]
+        , heading [ Html.text "Paragraph styles for user-authored content" ]
+            |> withVisualLevel Top
+            |> withDocumentLevel H2
+            |> Heading.view
         , Text.ugMediumBody [ Html.text <| "This is an ugMediumBody. " ++ longerBody ]
         , Text.ugSmallBody [ Html.text <| "This is an ugSmallBody. " ++ longerBody ]
         ]
diff --git a/styleguide-app/Examples/TextArea.elm b/styleguide-app/Examples/TextArea.elm
index 37d323ce..4fd075ed 100644
--- a/styleguide-app/Examples/TextArea.elm
+++ b/styleguide-app/Examples/TextArea.elm
@@ -11,7 +11,7 @@ import Html.Styled as Html
 import ModuleExample as ModuleExample exposing (Category(..), ModuleExample)
 import Nri.Ui.AssetPath exposing (Asset(..))
 import Nri.Ui.Checkbox.V5 as Checkbox
-import Nri.Ui.Text.V3 as Text
+import Nri.Ui.Heading.V1 as Heading
 import Nri.Ui.TextArea.V4 as TextArea
 
 
@@ -38,7 +38,10 @@ example parentMessage state =
     { name = "Nri.Ui.TextArea.V4"
     , category = Inputs
     , content =
-        [ Text.heading [ Html.text "Textarea controls" ]
+        [ Heading.heading [ Html.text "Textarea controls" ]
+            |> Heading.withDocumentLevel Heading.H1
+            |> Heading.withVisualLevel Heading.Top
+            |> Heading.view
         , Html.div []
             [ Checkbox.viewWithLabel
                 { identifier = "show-textarea-label"
diff --git a/styleguide-app/Headings.elm b/styleguide-app/Headings.elm
index f10c2a36..f134333c 100644
--- a/styleguide-app/Headings.elm
+++ b/styleguide-app/Headings.elm
@@ -1,29 +1,45 @@
 module Headings exposing (h1, h2, h3, h4, h5)
 
 import Html.Styled exposing (Html)
-import Nri.Ui.Text.V3 as Text
+import Nri.Ui.Heading.V1 as Headings exposing (..)
+import Nri.Ui.Text.V4 as Text
 
 
 h1 : List (Html msg) -> Html msg
 h1 =
-    Text.heading
+    heading
+        >> withVisualLevel Top
+        >> withDocumentLevel H1
+        >> view
 
 
 h2 : List (Html msg) -> Html msg
 h2 =
-    Text.heading
+    heading
+        >> withVisualLevel Top
+        >> withDocumentLevel H2
+        >> view
 
 
 h3 : List (Html msg) -> Html msg
 h3 =
-    Text.subHeading
+    heading
+        >> withVisualLevel Subhead
+        >> withDocumentLevel H3
+        >> view
 
 
 h4 : List (Html msg) -> Html msg
 h4 =
-    Text.subHeading
+    heading
+        >> withVisualLevel Subhead
+        >> withDocumentLevel H4
+        >> view
 
 
 h5 : List (Html msg) -> Html msg
 h5 =
-    Text.subHeading
+    heading
+        >> withVisualLevel Subhead
+        >> withDocumentLevel H5
+        >> view