diff --git a/book.asciidoc b/book.asciidoc
index c57cf7d3..864153c3 100644
--- a/book.asciidoc
+++ b/book.asciidoc
@@ -24,4 +24,6 @@ include::ch09.asciidoc[]
 
 include::appdx-scriptops.asciidoc[]
 
-include::appdx-sx.asciidoc[]
\ No newline at end of file
+include::appdx-sx.asciidoc[]
+
+include::appdx-pycoin.asciidoc[]
\ No newline at end of file