diff --git a/book.asciidoc b/book.asciidoc
index a7466455..bfacf3da 100644
--- a/book.asciidoc
+++ b/book.asciidoc
@@ -22,10 +22,6 @@ include::chapters/signatures.adoc[]
 
 include::chapters/fees.adoc[]
 
-include::ch06.asciidoc[]
-
-include::ch07.asciidoc[]
-
 include::ch08.asciidoc[]
 
 include::ch09.asciidoc[]
diff --git a/ch06.asciidoc b/ch06.asciidoc
deleted file mode 100644
index 085bf708..00000000
--- a/ch06.asciidoc
+++ /dev/null
@@ -1,2 +0,0 @@
-[[ch06]]
-
diff --git a/ch07.asciidoc b/ch07.asciidoc
deleted file mode 100644
index 8ed4d46d..00000000
--- a/ch07.asciidoc
+++ /dev/null
@@ -1,6 +0,0 @@
-[[ch07]]
-[[adv_transactions]]
-== Advanced Transactions and Scripting
-
-==== Median-Time-Past
-