diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e33609d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.png
diff --git a/ch1-high-aspiration.dot b/ch1-high-aspiration.dot
new file mode 100644
index 0000000..422861b
--- /dev/null
+++ b/ch1-high-aspiration.dot
@@ -0,0 +1,27 @@
+digraph {
+    sand [label="Sand"];
+    clay_ball [label="Clay Ball"];
+    kelp [label="Kelp"];
+    algal_blend [label="Algal Blend"]
+    algal_brick [label="Algal Brick"];
+    andesite [label="Andesite"];
+    andesite_alloy [label="Andesite Alloy"];
+
+    kelp_farm [label="Kelp Farm" shape=box3d]; kelp_farm -> kelp;
+    andesite_farm [label="Bedrock Andesite farm" shape=box3d]; andesite_farm -> andesite;
+    strainers [label="Strainer array" shape=box3d]; strainers -> sand;
+
+    sand -> clay_ball [label="Washing" color=blue fontcolor=blue];
+
+    mixer_algal_blend [label="Mechanical Mixer" shape=box];
+    clay_ball -> mixer_algal_blend;
+    kelp -> mixer_algal_blend;
+    mixer_algal_blend -> algal_blend;
+
+    algal_blend -> algal_brick [label="Blasting" color=red fontcolor=red];
+
+    mixer_andesite [label="Mechanical Mixer" shape=box];
+    algal_brick -> mixer_andesite;
+    andesite -> mixer_andesite;
+    mixer_andesite -> andesite_alloy;
+}