diff --git a/books/free-programming-books-langs.md b/books/free-programming-books-langs.md
index 5f53055de..6154a55c6 100644
--- a/books/free-programming-books-langs.md
+++ b/books/free-programming-books-langs.md
@@ -2084,7 +2084,7 @@ Books on general-purpose programming that don't focus on a specific language are
 * [The Python Coding Book](https://thepythoncodingbook.com) - Stephen Gruppetta (HTML)
 * [The Python GTK+ 3 Tutorial](http://python-gtk-3-tutorial.readthedocs.org/en/latest/)
 * [The Python Handbook](https://flaviocopes.com/page/python-handbook/) - Flavio Copes (PDF, EPUB, Kindle) *(email address requested)*
-* [The Recursive Book of Recursion](https://inventwithpython.com/recursion/) - Al Swigart (HTML) (3.x)
+* [The Recursive Book of Recursion](https://inventwithpython.com/recursion/) - Al Sweigart (HTML) (3.x)
 * [The Standard Python Library](https://web.archive.org/web/20200626001242/http://effbot.org/librarybook/) - Fredrik Lundh *( :card_file_box: archived)*
 * [Think Complexity](https://greenteapress.com/wp/think-complexity-2e/) - Allen B. Downey (2nd Edition) (PDF, HTML)
 * [Think DSP - Digital Signal Processing in Python](https://greenteapress.com/wp/think-dsp/) - Allen B. Downey (PDF, HTML)