diff --git a/notes/README.org b/notes/README.org
index 4670de5..2f7e918 100644
--- a/notes/README.org
+++ b/notes/README.org
@@ -3,3 +3,27 @@
   serve as documentation in their current state.
 
   Think of it as staging for [[../docs]].
+
+** The typegraphs
+   The type graph files are derived from a sarif input file, with various options
+   controlling output.
+
+   To produce dot maps of a sarif file type graph, from raw (largest) to fully
+   filled (most compact):
+
+   #+BEGIN_SRC sh
+     cd ../data/treeio/2022-02-25
+
+     # Everything:
+     ../../../bin/sarif-to-dot -t -d  results.sarif | dot -Tpdf > typegraph-td.pdf
+
+     # Suppress edges to int/bool/string types in dot graph
+     ../../../bin/sarif-to-dot -td -n results.sarif | dot -Tpdf > typegraph-tdn.pdf
+
+     # Additionally, only report unique array entry signatures
+     ../../../bin/sarif-to-dot -td -nu results.sarif | dot -Tpdf > typegraph-tdnu.pdf
+
+     # Additionally, fill in missing (optional) entries in sarif input before other steps.
+     ../../../bin/sarif-to-dot -td -nuf results.sarif | dot -Tpdf > typegraph-tdnuf.pdf
+
+   #+END_SRC
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diff --git a/sarif_cli/typegraph.py b/sarif_cli/typegraph.py
index 9a7270b..60f2632 100644
--- a/sarif_cli/typegraph.py
+++ b/sarif_cli/typegraph.py
@@ -1,8 +1,8 @@
 """Operations on the type graph produced by sarif-to-dot -u -t -f
 
 To get a map of this type graph, use
-    cd sarif-cli/data/treeio
-    ../../bin/sarif-to-dot -u -t -f -n -d  results.sarif | dot -Tpdf > typegraph.pdf
+    cd ../data/treeio/2022-02-25
+    ../../../bin/sarif-to-dot -u -t -f -n -d  results.sarif | dot -Tpdf > typegraph.pdf
 
 This file also contains some type graph reference values; these may be moved out into
 separate files at some point.