From Sam Jordison, author of the bestselling Crap Towns series, comes I-SPY for Grown-ups. The I-SPY concept is very simple: it's like the 'I spy with my little eye' game, only instead of all the tedious stuff about 'something beginning with', there are pictures and descriptions and genuine opportunities to use your sleuthing skills to discover interesting things.

This can be alarming - but when turned into a sport, it's also fun. Britain is simply brimming with officious signs.

It's not fun to defy them, however. Because then people will tut at you - and this is worse than death.

This book provides a useful guide to the signs you are likely to see strategically placed around the UK.

It teaches us that it's not only necessary to obey orders, it's enjoyable too.

It makes good spies of us all!