T W · T. Williams · Theresa M. Williams
| title | ISBN-13 | year of publication |
|---|---|---|
| Big Book of Lexicon | 978-1-55109-744-2 | 2009 |
| Big Book of Lexicon Vol 1, 2, 3 | 978-1-77108-165-8 | 2014 |
| Lexicon 11 | 978-1-55109-716-9 | 2009 |
| Lexicon 12 | 978-1-55109-797-8 | 2010 |
| Lexicon 13 | 978-1-55109-874-6 | 2011 |
| Lexicon 14 | 978-1-55109-928-6 | 2012 |
| Lexicon 15: Puzzles to Challenge and Entertain | 978-1-77108-104-7 | 2013 |
| Lexicon 16: Puzzles to Challenge & Enterrain | 978-1-77108-206-8 | 2014 |
| Lexicon Best of Vol 1-3 | 978-1-55109-489-2 | 2004 |
| Lexicon Junior | 978-1-55109-672-8 | 2008 |
| Lexicon Vol IV | 978-1-55109-362-8 | 2001 |
| Lexicon Vol IX | 978-1-55109-661-2 | 2008 |
| Lexicon, Volume 6 | 978-1-55109-542-4 | 2005 |
| Lexicon Vol V | 978-1-55109-493-9 | 2004 |
| Lexicon Vol VII | 978-1-55109-596-7 | 2006 |
| Lexicon Vol VIII: Puzzles to Challenge and Entertain | 978-1-55109-638-4 | 2007 |
| Lexicon X | 978-1-55109-690-2 | 2008 |