'"Why are we here?" The only time I ever asked meself that was on a surprise holiday to Lanzarote.' Left to his own devices, Karl Pilkington would be happy with his life just as it is.

But now he's hit forty, everyone keeps asking him why he's so reluctant to marry his girlfriend and why he doesn't want to have kids.

It's time for Karl to face up to the biggest question of the lot - what does it all mean?

Karl thought he'd seen it all filming An Idiot Abroad, but now he's off around the globe to learn how other cultures deal with life's big issues.

Find out how Karl copes as he . . . - Has plastic surgery in LA - Models for a Japanese life drawing class - Helps deliver a baby in Bali Have his experiences changed him?

Find out in this hilarious new book.