diff --git a/README.md b/README.md
index dd8d689..0dfd19e 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,9 @@
 Category Theory for Programmers
 ====
 
+<img src="https://github.com/hmemcpy/milewski-ctfp-pdf/raw/master/src/commutative_diagram.png"
+ alt="Category Theory for Programmers" width=256 align="right" />
+
 **Note**: this is a work in progress!
 
 <b>Direct link: [category-theory-for-programmers.pdf](https://github.com/hmemcpy/milewski-ctfp-pdf/raw/master/ctfp.pdf)</b>
diff --git a/ctfp.pdf b/ctfp.pdf
index 19b9195..06a5b75 100644
Binary files a/ctfp.pdf and b/ctfp.pdf differ
diff --git a/src/bookwheel.jpg b/src/bookwheel.jpg
deleted file mode 100644
index 1d7a66c..0000000
Binary files a/src/bookwheel.jpg and /dev/null differ
diff --git a/src/commutative_diagram.png b/src/commutative_diagram.png
new file mode 100644
index 0000000..cc06ab1
Binary files /dev/null and b/src/commutative_diagram.png differ
diff --git a/src/coverpage.svg b/src/coverpage.svg
index 01a1d81..e0ed509 100644
--- a/src/coverpage.svg
+++ b/src/coverpage.svg
@@ -12,7 +12,7 @@
    xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
    style="display:inline;enable-background:new"
    sodipodi:docname="coverpage.svg"
-   inkscape:version="0.48.3.1 r9886"
+   inkscape:version="0.91 r13725"
    version="1.1"
    id="svg2"
    height="853"
@@ -43,15 +43,15 @@
      inkscape:pageopacity="0"
      inkscape:pageshadow="2"
      inkscape:zoom="0.98994951"
-     inkscape:cx="472.66589"
-     inkscape:cy="421.26271"
+     inkscape:cx="678.97117"
+     inkscape:cy="434.61539"
      inkscape:document-units="px"
      inkscape:current-layer="layer3"
      showgrid="false"
      inkscape:window-width="1920"
-     inkscape:window-height="1004"
+     inkscape:window-height="1114"
      inkscape:window-x="0"
-     inkscape:window-y="24"
+     inkscape:window-y="0"
      inkscape:window-maximized="1"
      height="1020px"
      width="600px">
@@ -136,116 +136,53 @@
      transform="translate(0,-199.36211)">
     <text
        xml:space="preserve"
-       style="font-size:36.18788528px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:start;line-height:100%;letter-spacing:0px;word-spacing:0px;text-anchor:start;fill:#000000;fill-opacity:1;stroke:none;display:inline;enable-background:new;font-family:Alegreya;-inkscape-font-specification:Alegreya"
-       x="319.11899"
+       style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:36.18788528px;line-height:100%;font-family:Alegreya;-inkscape-font-specification:Alegreya;text-align:start;letter-spacing:0px;word-spacing:0px;text-anchor:start;display:inline;fill:#000000;fill-opacity:1;stroke:none;enable-background:new"
+       x="320.69214"
        y="329.89368"
        id="text2985"
        sodipodi:linespacing="100%"><tspan
          sodipodi:role="line"
-         x="319.11899"
+         x="320.69214"
          y="329.89368"
-         style="font-size:52.5px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:center;line-height:110.00000238%;word-spacing:0px;text-anchor:middle;fill:#000000;fill-opacity:1;font-family:Alegreya;-inkscape-font-specification:Alegreya"
-         id="tspan3056"><tspan
-           dx="0 0 0 0 0 0 0 0"
-           id="tspan3091"
-           style="font-size:52.5px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:center;line-height:110.00000238%;word-spacing:0px;text-anchor:middle;fill:#000000;fill-opacity:1;font-family:Alegreya;-inkscape-font-specification:Alegreya">Structure and</tspan></tspan><tspan
+         style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:52.5px;line-height:110.00000238%;font-family:Alegreya;-inkscape-font-specification:Alegreya;text-align:center;word-spacing:0px;text-anchor:middle;fill:#000000;fill-opacity:1"
+         id="tspan3294">Category Theory</tspan><tspan
          sodipodi:role="line"
-         x="319.11899"
+         x="320.69214"
          y="387.64368"
-         style="font-size:52.5px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:center;line-height:110.00000238%;word-spacing:0px;text-anchor:middle;fill:#000000;fill-opacity:1;font-family:Alegreya;-inkscape-font-specification:Alegreya"
-         id="tspan3267"><tspan
-           dx="0 0 0 0 0 0 0 0 0 0 0 0 0 0"
-           style="font-size:52.5px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:center;line-height:110.00000238%;word-spacing:0px;text-anchor:middle;fill:#000000;fill-opacity:1;font-family:Alegreya;-inkscape-font-specification:Alegreya"
-           id="tspan3278">Interpretation</tspan></tspan><tspan
-         sodipodi:role="line"
-         x="324.39975"
-         y="445.39368"
-         style="font-size:52.5px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:center;line-height:110.00000238%;word-spacing:0px;text-anchor:middle;fill:#000000;fill-opacity:1;font-family:Alegreya;-inkscape-font-specification:Alegreya"
-         id="tspan3288"><tspan
-           id="tspan3305"
-           style="font-size:52.50000000000000000px;font-style:italic;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:center;line-height:110.00000238000001218%;word-spacing:5px;text-anchor:middle;fill:#000000;fill-opacity:1;font-family:Alegreya;-inkscape-font-specification:Alegreya Italic">of </tspan><tspan
-           style="font-size:52.5px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:center;line-height:110.00000238%;word-spacing:5px;text-anchor:middle;fill:#000000;fill-opacity:1;font-family:Alegreya;-inkscape-font-specification:Alegreya"
-           dx="0 0 0 0 0 0 0 0"
-           id="tspan3292">Computer </tspan></tspan><tspan
-         sodipodi:role="line"
-         x="319.11899"
-         y="503.14368"
-         style="font-size:52.5px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:center;line-height:110.00000238%;word-spacing:0px;text-anchor:middle;fill:#000000;fill-opacity:1;font-family:Alegreya;-inkscape-font-specification:Alegreya"
-         dx="0 0 0 0 0 0 0 -0.50260949"
-         id="tspan3294">Programs</tspan></text>
+         style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:52.5px;line-height:110.00000238%;font-family:Alegreya;-inkscape-font-specification:Alegreya;text-align:center;word-spacing:0px;text-anchor:middle;fill:#000000;fill-opacity:1"
+         id="tspan3386">for Programmers</tspan></text>
     <text
        xml:space="preserve"
-       style="font-size:24.12525558px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:start;line-height:110.00000238%;letter-spacing:0px;word-spacing:0px;text-anchor:start;fill:#000000;fill-opacity:1;stroke:none;display:inline;enable-background:new;font-family:Alegreya;-inkscape-font-specification:Alegreya"
-       x="218.10582"
-       y="901.53918"
+       style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:24.12525558px;line-height:139.99999762%;font-family:Alegreya;-inkscape-font-specification:Alegreya;text-align:start;letter-spacing:0px;word-spacing:0px;text-anchor:start;display:inline;fill:#000000;fill-opacity:1;stroke:none;enable-background:new"
+       x="153.76953"
+       y="797.94342"
        id="text4059"
        sodipodi:linespacing="140%"><tspan
          sodipodi:role="line"
-         x="218.10582"
-         y="901.53918"
-         id="tspan4063"
-         style="font-size:25.20000076000000178px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;line-height:120%;word-spacing:0px;fill:#000000;fill-opacity:1;font-family:Alegreya;-inkscape-font-specification:Alegreya"
-         dx="-1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0.2 0 0 -0.2">Harold Abelson and </tspan><tspan
-         sodipodi:role="line"
-         x="218.10582"
-         y="929.25922"
-         style="font-size:25.20000076000000178px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;line-height:120%;word-spacing:0px;fill:#000000;fill-opacity:1;font-family:Alegreya;-inkscape-font-specification:Alegreya"
-         id="tspan7238"
-         dx="0 0 0 0 0 0 0 0 0 0 0">Gerald Jay Sussman</tspan><tspan
-         sodipodi:role="line"
-         x="218.10582"
-         y="956.97919"
-         id="tspan4069"
-         style="font-size:25.20000076px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;line-height:120.00000477%;word-spacing:3.77119613px;fill:#000000;fill-opacity:1;font-family:Alegreya;-inkscape-font-specification:Alegreya"
-         dx="0 0 0 0 0">with Julie Sussman </tspan><tspan
-         sodipodi:role="line"
-         x="218.10582"
-         y="980.34705"
-         style="font-size:19.89999961999999911px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;line-height:140%;word-spacing:0px;fill:#000000;fill-opacity:1;font-family:Alegreya;-inkscape-font-specification:Alegreya"
-         id="tspan7240"
-         dx="0 0 0 0 0 0 0 0 0">foreword by Alan J. Perlis</tspan></text>
+         x="153.76953"
+         y="797.94342"
+         style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:40px;line-height:139.99999762%;font-family:sans-serif;-inkscape-font-specification:sans-serif;word-spacing:0px;fill:#000000;fill-opacity:1"
+         id="tspan7240">Bartosz Milewski</tspan></text>
+    <image
+       sodipodi:absref="/Users/igalt/code/milewski-ctfp-pdf/src/commutative_diagram.png"
+       xlink:href="commutative_diagram.png"
+       y="436.8056"
+       x="215.9724"
+       id="image7052"
+       height="301.99292"
+       width="208.05521"
+       style="display:inline;enable-background:new" />
     <text
        xml:space="preserve"
-       style="font-size:26.1356945px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:start;line-height:120.00000477%;letter-spacing:0px;word-spacing:0px;text-anchor:start;fill:#000000;fill-opacity:1;stroke:none;display:inline;enable-background:new;font-family:Alegreya;-inkscape-font-specification:Alegreya"
-       x="320.07907"
-       y="867.31512"
-       id="text5884"
-       sodipodi:linespacing="120%"><tspan
-         sodipodi:role="line"
-         x="320.07907"
-         y="867.31512"
-         style="font-size:11.72px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:center;line-height:120.00000476999998966%;word-spacing:0px;text-anchor:middle;fill:#000000;fill-opacity:1;font-family:Alegreya;-inkscape-font-specification:Alegreya"
-         id="tspan7192"
-         dx="0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0"><tspan
-   dx="0 0 0 0 0 0 0 0 0 0"
-   dy="0 0 0 0 0 0 0 0 0 0"
-   id="tspan3066"
-   style="font-size:11.72px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:center;line-height:120.00000476999998966%;word-spacing:0px;text-anchor:middle;fill:#000000;fill-opacity:1;font-family:Alegreya;-inkscape-font-specification:Alegreya"><tspan
-     style="font-size:11.72px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:center;word-spacing:0px;text-anchor:middle;fill:#000000;fill-opacity:1;font-family:Alegreya;-inkscape-font-specification:Alegreya"
-     id="tspan3026"
-     dx="0">Unofficial Texinfo Format </tspan></tspan>2.andresraba5.6</tspan></text>
-    <text
-       xml:space="preserve"
-       style="font-size:26.1356945px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:start;line-height:125%;letter-spacing:0px;word-spacing:0px;text-anchor:start;fill:#000000;fill-opacity:1;stroke:none;display:inline;enable-background:new;font-family:Alegreya;-inkscape-font-specification:Alegreya"
-       x="320.09695"
-       y="853.24207"
-       id="text5896"
+       style="font-style:normal;font-weight:normal;font-size:40px;line-height:125%;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
+       x="198.57143"
+       y="836.64783"
+       id="text3401"
        sodipodi:linespacing="125%"><tspan
          sodipodi:role="line"
-         id="tspan5898"
-         x="320.09695"
-         y="853.24207"
-         style="font-size:27.9px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:center;word-spacing:0px;text-anchor:middle;fill:#a02c2c;fill-opacity:1;font-family:Alegreya SC;-inkscape-font-specification:Alegreya SC"
-         dx="0 1.005219 1.005219 1.005219 1.005219 1.005219 0 1.005219 1.005219 1.005219 1.005219 1.005219 1.005219 1.005219">second edition</tspan></text>
-    <image
-       sodipodi:absref="/home/andres/Programmid/Texinfo/sicp-pdf/src/bookwheel.jpg"
-       xlink:href="bookwheel.jpg"
-       style="display:inline;enable-background:new"
-       width="208.05521"
-       height="301.99292"
-       id="image7052"
-       x="215.96559"
-       y="522.66858" />
+         id="tspan3403"
+         x="198.57143"
+         y="836.64783" /></text>
   </g>
   <g
      inkscape:groupmode="layer"
diff --git a/src/sicp.texi b/src/sicp.texi
index d1a7d28..04d9006 100644
--- a/src/sicp.texi
+++ b/src/sicp.texi
@@ -34,7 +34,7 @@
 
 \frontmatter
 
-@comment \includepdf[scale=0.92]{coverpage.pdf}
+\includepdf[scale=0.92]{coverpage.pdf}
 
 \pagebreak