diff --git a/manuscript/book.txt b/manuscript/book.txt
index 69636fe..815237b 100644
--- a/manuscript/book.txt
+++ b/manuscript/book.txt
@@ -4,7 +4,3 @@ CHANGELOG.md
 whoami.md
 
 sections/ha-docker-swarm.md
-ha-docker-swarm/design.md
-ha-docker-swarm/nodes.md
-ha-docker-swarm/shared-storage-ceph.md
-ha-docker-swarm/shared-storage-gluster.md