Great book! Collects and updates creature write up from just about all the different 5th edition Hero System books and does great conversions and updates to 6th edition. I like to get my books in PDF, and a lot of the 5th edition books that this gathers creatures from were not available in PDF at all. Great value; good, detailed write-ups, nice illustrations, and good coverage of multiple genres as well as extra rules for custom hit locations and how to use for different genres.