If you cook anything from Plenty, please let us know how it turns out. I've made a few Ottolenghi recipes from his earlier cookbook, titled oddly enough "Ottolenghi". They turned out so well that I have debated buying it, but I already own so many cookbooks that I've tried to resist. (In case you are interested, I made the Cauliflower fritters and the Chicken with za'tar and sumac and you can search on-line for the recipes). I heard that the recipes in Plenty wasn't quite as good, but the book does look exquisite.
I cooked the peppered tofu which was excellent and I have now added to my repertoire. I made a few other things and they turned out well. My opinion: Some of the recipes need altering - either due to difficult to find ingredients (difficult in my rural part of the world!) or because they use huge amounts of things (the tofu used 5 tb of pepper and 11 tb of butter!) I would only buy the book if I were comfortable altering recipes. The things I tried all came out well, and are different than the stuff I usually make or find in cookbooks, so that is good. Lots of garlic, spices, chili, lemons...this is food for foodies.
The book is broken down by vegetable and is vegetarian, but definitely not vegan.
I would take it out from the library before buying - it is not everyones cup of tea - but it is mine.