I got my work to get me this book, while I appreciate them doing so I wish O'Reilly put a code in or something to let you redeem a PDF copy too. I've seen other publishers do this (e.g. Manning)

I tend to read on the tube a lot and lugging a hefty O'Reilly tome around on my commute isn't ideal.

Currently the book is just sitting on a shelf, I'll get round to it one day!