diff --git a/book/src/building/consensus/README.md b/book/src/building/consensus/README.md
new file mode 100644
index 000000000..5cfc2c950
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+++ b/book/src/building/consensus/README.md
@@ -0,0 +1 @@
+# Consensus
diff --git a/book/src/building/genesis/README.md b/book/src/building/genesis/README.md
new file mode 100644
index 000000000..3b3fdac9c
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+++ b/book/src/building/genesis/README.md
@@ -0,0 +1 @@
+# Genesis