This collection investigates the challenge of high-level cryptic crossword construction and the cognitive engagement required to solve them. The editor, Alan Cash, compiles a selection of puzzles originally featured in the Financial Times, a publication known for its rigorous and demanding crossword standards. The book serves as a structured repository of these puzzles, providing a testing ground for enthusiasts to apply deductive reasoning and linguistic analysis to complex clues.

Readers frequently note that these puzzles are intended for experienced solvers due to their high level of difficulty. Experts highlight this collection as a standard reference for those looking to practice the specific style of clue-writing associated with British broadsheet newspapers.