I've been looking for this book at various stores and came across it for £4.99 delivered for free with the code 198FREE. It was only released on 18/09/09 and next cheapest I can find is £7.48 at Amazon, with other stores at £10+.
Packed with enough jokes to fill a whole new series, Mock the Week: This Year's Book! is a brand new collection of near-the-knuckle humour and timely and topical witticisms from one of TV's most popular shows. With a host of laugh-out-loud one liners throughout, categories include Bad Things to Hear on Waking Up, Unlikely Dictionary Definitions and Cards You Never See in a Newsagent's Window. Ideal for dipping into or reading from cover to cover!