Pocket Library is a series of miniature books. Each box contains six books. The first was published in 1997 and then again in 2000 by Heinemann Young Books, then another was published in 2005, and the latest edition was published by Egmont Books Ltd in 2015. Until 2015, all contained photos from the television series.
1997 Edition
Contains six stories from the third season of the television series.
- Henry and the Forest
- James and the Express
- Gordon in Trouble
- Percy Makes a Promise
- Thomas and the Dragon
1999 Edition
Contains six stories from the third and fourth season of the television series.
2002 Edition
Contains six stories from the fifth season of the television series.
- Thomas and Cranky
- A View for Gordon
- Thomas' Fishy Day
- Percy and the Mine
- Thomas Helps James
- Horrid Lorries
2005 Edition
Contains six stories from the eighth season of the television series.
- Thomas in a Rush
- James' New Coat
- Percy Plays Tricks
- Thomas' Dusty Day
- Toby's Milk Round
- Percy's Big Mistake
2010 Edition
Contains six stories from the twelfth season of the television series.
- Thomas and Diesel
- Steady Old Edward
- Excellent Emily
- Gordon's Shortcut
- Rosie and the Special
- Toby's Surprise
This edition was re-released in 2012 in a larger form under the name Super Library.
2015 Edition
Contains six stories and was released on April 30, 2015. The books are illustrated by Dan Crisp although he does not receive credit for his work. This is the first edition in the series to feature original stories in the form of rhymes and original illustrations.
- Thomas at the Station
- Percy's Wash
- Edward at the Docks
- James at the Farm
- Henry at the Circus
- Thomas' Friends
2015 Super Library
Contains six larger form books based on episodes from the CGI Series.