diff --git a/src/lib.rs b/src/lib.rs
index 0e3b4df75..5fa67d833 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,6 +1,8 @@
 //! `tracing-actix-web` provides [`TracingLogger`], a middleware to collect telemetry data from applications
 //! built on top of the [`actix-web`] framework.
 //!
+//! > `tracing-actix-web` was initially developed for the telemetry chapter of [Zero to Production In Rust](https://zero2prod.com), a hands-on introduction to backend development using the Rust programming language.
+//!
 //! # Getting started
 //!
 //! ## How to install