I started a few weeks ago with No Nettles Required which I highly recommend for anyone into Wildlife and gardening. There are a lot of people saying all sorts about what is best to do for garden wildlife and most of it just feels...wrong. This book takes a scientific look at it all.
Then I moved on to Do We Need Pandas? which I also highly recommend. It's easy to jump on the biodiversity bandwagon without really knowing what it actually means. Is it really important to save the rarest type of butterfly? Is it better to have biodiversity or is it more important to just have the more common species that are more successful? Do diverse habitats perform better than less diverse ones? By the end of the book you'll have no solid answers but you'll get the feeling that focusing on really rare species is probably not the answer.
Then a chance recommendation took me to One Day the Shadow Passed also highly recommended. A beautiful, if slightly simply written, fictional account of a meeting with a Japanese inspirational natural farmer, based loosely on Masanobu Fukuoka, the inventor of do-nothing gardening and an inspiration to permaculture types.
It made me want to read about Masanobu Fukuoka so I got the classic One Straw Revolution and I've almost finished it.
The above book also inspired me to get How to Make a Forest Garden, which is awesome and I'll be delving into that one for a while, no doubt.
There are so many fascinating books and each feels like a stepping stone to the next. I'm not sure I'll ever stop reading!