How many best sellers did J.R.R Tolkien have?

J.R.R. Tolkien's most famous work, The Lord of the Rings, is undeniably his best-selling book. It has sold over 150 million copies worldwide and is considered one of the best fantasy novels ever written.

While there are other books by Tolkien that have achieved significant sales, "The Lord of the Rings" stands out as his absolute best-seller.

It's worth noting that:

* The Hobbit, Tolkien's earlier work, has also been a huge success, selling over 100 million copies worldwide.

* The Silmarillion, a collection of Tolkien's mythology and history, has sold millions of copies.

* The Adventures of Tom Bombadil, a collection of poems and stories, has also been popular.

Overall, while Tolkien's work has produced several successful books, "The Lord of the Rings" remains his undisputed best-seller.