It gives a short summary of each of the top 50 books about sustainability, as voted by alumni of the Cambridge University Programme for Sustainable Leadership. Also, for many of the books, the authors have contributed short comments about what has changed since their book was originally published.
I'm using it now to guide what I'm likely to read next. I'd recommend it to anyone in Government, Business, Academia or the Third Sector who is interested in how we can create a sustainable future or how we arrived at the current state of imbalance between people and planet.
I provide a full list of the featured books in my "nutshell" area at:
http://greencleantech.weebly.com/nutshell.html