This is a brilliant deal which hasn't been available for more than a year at The Book People. The books cost £3.99 each in Smiths, Waterstones etc so this is good value. Red House did have it about a month ago for £12.99 with free p&p but have now sold out so this is a great alternative. P&P is £3.50 but if you spend over £25 it is free.
DON'T FORGET 6% QUIDCO!