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@@ -79,7 +79,7 @@ The Simple language is styled after a subset of C or Java.
 * [Chapter 28b](chapter28b/README.md): Separate Compilation
 * [Chapter 29](chapter29/README.md): Tech Debt Cleanup, Partial Objects
 * [Chapter 30](chapter30/README.md): Text Formatting and Diagnostics
-* [Chapter 31](chapter31/README.md): Work in Progress
+* [Chapter 31](chapter31/README.md): Software Drawing and Graphical Games (work in progress)
 
 Appendices: [Native libraries](docs/appendices/native-libraries.md),
 [optimizer and backend tuning](docs/appendices/optimizer-tuning.md).