The next book in the highly successful Simplex series. It contains 150 Crosswords with Clues and Answers.

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. This is her ninth book.

Solving Simplex, the most popular crossword in Ireland, is an integral part of the day for Irish Times readers. It first appeared in the newspaper on 21 May 1951, initially on Mondays, Wednesdays and Fridays. It was immediately popular and the newspaper soon bowed to pressure from readers to publish it in every edition. The format has changed little in the past 55 years, offering today what it always has: a...

At last The first ever Bumper Book of Simplex Crosswords. For the thousands of fans who have been asking for a new book of Simplex crosswords, it's been worth the wait. 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.

Here are another 150 puzzles from Ireland's favourite crossword

The Simplex crossword is one of the most popular items in The Irish Times, with tens of thousands of readers attempting to solve it every day for over sixty years. Challenging enough to tax the brain cells, but designed so that it can be completed on the train or in a lunch hour, this huge collection is great value and a must for every crossword fan. This is the ideal way to keep your puzzle-solving skills up to scratch whether you're on holiday, commuting or simply relaxing at home.