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The first ever Bumper Book of Simplex Crosswords. Containing 300 Simplex crosswords, all newly-published in book form, the first ever Bumper Book of Simplex Crosswords has been compiled by Mary O'Brien.

All newly published in book form, Simplex 150 has been compiled by Mary O' Brien, who has been setting the Simplex crossword for more than 20 years

Transform your home into a permanently clear and clutter-free space with the incredible KonMari Method. This title helps you tidy your rooms once and for all with inspirational step-by-step method.

Here are another 150 puzzles from Ireland's favourite crossword.

Appearing daily in the Irish Times for over forty years, the Simplex crossword has attracted a devoted following.

The Simplex Crossword formula has been hugely successful and made bestsellers of all six books. Appearing daily in the Irish Times for over forty years, the crossword has attracted a devoted following.

The next book in the highly successful Simplex series.

A collection of 200 previously unpublished Difficult Su Doku puzzles. Perfect for the more advanced Su Doku solver in need of a constant supply of challenging puzzles. Guaranteed to provide hours of absorbing, brain-stretching entertainment.

The first two bestselling titles in the Simplex crosswords series combined in a great new edition.

Offers a collection that contains over 200 Sudoku puzzles and step-by-step instructions to help you complete your puzzle in record time. This book also includes against-the-clock time challenges and a scoreboard to help you measure your growing skill.