Yotam Ottolenghi fans: which is his best book?

[CravingSunshine]

I'd like to buy one of his cookbooks, having been inspired by his comments on C4 news last night. I've also eaten in his cafe up in Islington. Delish but which book is the best - ie not too complicated / stuff you might attempt on a week night?

I think the first one is best by a very narrow margin. They're all good (although I've only read Jerusalem in Waterstones, so I don't know it in any depth). The first one is my go-to book for casual entertaining. Always impressive.