diff --git a/docs/reading.md b/docs/reading.md
index 8be22ad79..1f57de63c 100644
--- a/docs/reading.md
+++ b/docs/reading.md
@@ -73,6 +73,7 @@
 * [WorldCat](https://www.worldcat.org/), [LibrarySearch](https://librarysearch.gre.ac.uk/) or [TRL](https://www.trl.org/) - Search Local Libraries / [Extension](https://www.libraryextension.com/)
 * [PublicDomainReview](https://publicdomainreview.org/) - Reviews / Essays of Public Domain Material
 * [⁠Distributed Proofreaders](https://www.pgdp.net/) - Help Digitize Public Domain Books to Ebooks
+* * [Planet PDF](https://planet-pdf.com/)
 
 ***
 
@@ -969,4 +970,4 @@
 * [HowLongToRead](https://howlongtoread.com/) or [ReadingLength](https://www.readinglength.com/) - Find Book Lengths / Reading Times
 * [BTW](https://booktriggerwarnings.com/) - Book Trigger Warnings
 * [DIY Book Scanner](https://diybookscanner.org/) - How to Scan Books
-* [The Submission Grinder](https://thegrinder.diabolicalplots.com/) - Find a Publisher
\ No newline at end of file
+* [The Submission Grinder](https://thegrinder.diabolicalplots.com/) - Find a Publisher