I live in a semi on the outskirts of London, so my garden is definitely NOT huge

However, I'd love to turn it into a forest garden. Does anyone have any advice on books or other resources which I could use to get ideas / learn how to set one up? I'm used to traditional fruit and veg growing, but have never attempted anything like this - or garden design, really.
I'm wondering whether to get Martin Crawford's 'Creating a Forest Garden'. Is anyone familiar with that book, who could let me know whether it's suitable for me or not?
Thanks
Caroline