diff --git a/book.asciidoc b/book.asciidoc
index f435b3d7..a1e26818 100644
--- a/book.asciidoc
+++ b/book.asciidoc
@@ -1,16 +1,10 @@
+:bookseries: basic
+
 Mastering Bitcoin
 ==========
 
-/////////////
-Keep a blank line between each include::[] macro
-/////////////
-
-include::colo.asciidoc[]
-
 include::preface.asciidoc[]
 
 include::Introduction.asciidoc[]
 
-include::ch01.asciidoc[]
-