diff --git a/janet.md b/janet.md
index 9ca0b421..39c85231 100644
--- a/janet.md
+++ b/janet.md
@@ -329,3 +329,6 @@ This tour didn't cover a number of other features such as modules, fibers,
 PEGs, macros, etc., but should give you a taste of what Janet is like. See
 the [Janet manual](https://janet-lang.org/docs/index.html) and the [Janet API
 docs](https://janet-lang.org/api/index.html) for more info.
+
+Also check out [Janet for Mortals](https://janet.guide/) for an in-depth ebook
+on Janet.
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