| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2009 | 978-0-9562977-0-9 | Andrew Keeling | Musical Guide to In The Court Of The Crimson King by King Crimson: 1 |
| 2010 | 978-0-9562977-1-6 | '' | Musical Guide to In the Wake of Poseidon by King Crimson and McDonald and Giles by McDonald and Giles |
| '' | 978-0-9562977-2-3 | '' | Musical Guide to Larks' Tongues in Aspic by King Crimson |