diff --git a/src/doc/book/lifetimes.md b/src/doc/book/lifetimes.md
index 695b1614fb7..cb075731898 100644
--- a/src/doc/book/lifetimes.md
+++ b/src/doc/book/lifetimes.md
@@ -1,7 +1,7 @@
 % Lifetimes
 
-This guide is three of three presenting Rust’s ownership system. This is one of
-Rust’s most unique and compelling features, with which Rust developers should
+This is the last of three sections presenting Rust’s ownership system. This is one of
+Rust’s most distinct and compelling features, with which Rust developers should
 become quite acquainted. Ownership is how Rust achieves its largest goal,
 memory safety. There are a few distinct concepts, each with its own chapter:
 
diff --git a/src/doc/book/ownership.md b/src/doc/book/ownership.md
index 988103a1180..e2e0403b738 100644
--- a/src/doc/book/ownership.md
+++ b/src/doc/book/ownership.md
@@ -1,7 +1,7 @@
 % Ownership
 
-This guide is one of three presenting Rust’s ownership system. This is one of
-Rust’s most unique and compelling features, with which Rust developers should
+This is the first of three sections presenting Rust’s ownership system. This is one of
+Rust’s most distinct and compelling features, with which Rust developers should
 become quite acquainted. Ownership is how Rust achieves its largest goal,
 memory safety. There are a few distinct concepts, each with its own
 chapter:
diff --git a/src/doc/book/references-and-borrowing.md b/src/doc/book/references-and-borrowing.md
index 67a8a82f2a3..a28f450c942 100644
--- a/src/doc/book/references-and-borrowing.md
+++ b/src/doc/book/references-and-borrowing.md
@@ -1,7 +1,7 @@
 % References and Borrowing
 
-This guide is two of three presenting Rust’s ownership system. This is one of
-Rust’s most unique and compelling features, with which Rust developers should
+This is the second of three sections presenting Rust’s ownership system. This is one of
+Rust’s most distinct and compelling features, with which Rust developers should
 become quite acquainted. Ownership is how Rust achieves its largest goal,
 memory safety. There are a few distinct concepts, each with its own
 chapter: