This refers unofficially to two booklets that came with two certain editions of The Hobbit. They are similar in format and content, containing miscellaneous things concerning The Hobbit.
They most notably contain a lecture titled "Dragons" by J.R.R. Tolkien, which has not been published fully anywhere else.
The Hobbit 1937-2017
The first of these came with The Hobbit Facsimile Gift Edition box (ISBN 9780008259549) in 2018. It has 62 pages, and has the following content:
- The History of The Hobbit
- Publication
- Later Editions
- 'The Hoard' by J.R.R. Tolkien
- Lecture on Dragon
- 'Dragons' by J.R.R. Tolkien
Mathoms
The booklet was again included in The Hobbit Illustrated by the Author deluxe slipcased edition (ISBN 9780008627836) in 2023. it has 88 pages, containing one more section than the previous one.
- The History of The Hobbit
- Thorin's letter to Bilbo*
- Publication
- Later Editions
- 'The Hoard' by J.R.R. Tolkien
- Lecture on Dragon
- 'Dragons' by J.R.R. Tolkien