diff --git a/manuscript/backmatter.md b/manuscript/backmatter.md
index a6a7d612..145d830b 100644
--- a/manuscript/backmatter.md
+++ b/manuscript/backmatter.md
@@ -787,6 +787,7 @@ Some additional learning materials are:
 -   [Parallel and Concurrent Programming in Haskell](http://shop.oreilly.com/product/0636920026365.do) and [What I Wish I Knew When
     Learning Haskell](http://dev.stephendiehl.com/hask/#data-kinds) for intermediate wisdom.
 -   [Glasgow Haskell Compiler User Guide](https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/) and [HaskellWiki](https://wiki.haskell.org) for the cold hard facts.
+-   [Eta](https://eta-lang.org/), i.e. Haskell for the JVM.
 
 If you enjoy using Haskell and understand the value that it would bring to your
 business, then tell your managers! That way, the small percentage of managers
diff --git a/manuscript/book.org b/manuscript/book.org
index 0e44ac18..a315fa8a 100644
--- a/manuscript/book.org
+++ b/manuscript/book.org
@@ -17167,6 +17167,7 @@ Some additional learning materials are:
 - [[http://shop.oreilly.com/product/0636920026365.do][Parallel and Concurrent Programming in Haskell]] and [[http://dev.stephendiehl.com/hask/#data-kinds][What I Wish I Knew When
   Learning Haskell]] for intermediate wisdom.
 - [[https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/][Glasgow Haskell Compiler User Guide]] and [[https://wiki.haskell.org][HaskellWiki]] for the cold hard facts.
+- [[https://eta-lang.org/][Eta]], i.e. Haskell for the JVM.
 
 If you enjoy using Haskell and understand the value that it would bring to your
 business, then tell your managers! That way, the small percentage of managers