LOTR: Things Only Book Readers Know About Gollum

There are several facts about Lord of the Rings

How was Gollum described in the Lord of the Rings books? - Quora

Screenrant List: 15 Things You Didn't Know About Gollum

The Lord of the Rings: Gollum review: you shall pass on this one

by Tolkien, J.R.R.

The Hobbit (The Lord of the Rings)

Gollum - Tolkien Gateway

The Lord of the Rings™ Tarot Deck and Guide - Book Summary & Video, Official Publisher Page

Reading “The Lord of the Rings”: Chapter 6 — “The Forbidden Pool” (Book Four), by Dr. Thomas J. West III, Darcy and Winters

The Fellowship of the Ring (Media Tie-in) by J.R.R. Tolkien - Teacher's Guide: 9780593500484 - : Books

The Return of the King (Media Tie-in) by J.R.R. Tolkien - Teacher's Guide: 9780593500507 - : Books

The Complete Timeline Of Smeagol's Transformation To Gollum