Hugh Neill’s book, Codewords Book 2, was reviewed by Dr Caroline Ellwood. Dr Caroline Ellwood's review praises the book's layout and differing levels of difficulty stating, “The collection is elegantly produced and specially pleasing is the size and clarity of the numbering.”

Codewords Book 2 is a collection of about 150 Codeword puzzles that are easy on the eye but tickle the brain. The book contains an introductory beginner-level puzzle that explains how Codeword puzzles work. The book is highly recommended for individuals who enjoy a challenge. This is Neil’s second book, preceded by his first titled Codewords Book 1.

Hugh Neill is a retired Mathematics Professor who taught at Durham University and different schools. He has over 23 years of experience in teaching Mathematics and went on to become the Staff Inspector for Mathematics. In 1990, he turned to writing and presently has authored 70 books on Mathematics.