World War Z is a different kind of book. In fact it is unlike anything I have ever read. If you disliked the movie - then the book is especially for you - as it is nothing like the movie by the same name, except maybe some of the overall scenarios. This is Max Brooks' 2nd Zombie book, though I did not read the first, as it seemed more technical/Zombie fans genre oriented.
In contrast World War Z is a collection of interviews conducted & edited by the story teller, which started as a document for the UN (to better understand and appraise the zombie war), and ended as a book due to its fabulous human content. Each interview tells a personal story of the interviewee’s involvement in the Zombie war, some not even as combatant but mere bystanders.
At the end of the day, World War Z is an underlying critics of western society. Everything that went wrong during the Zombie War is something that has to do with the modern age laziness and self-oriented culture, and everything that signalled the turning point in the war (and thus mankind’s salvation) has been achieved through cooperation and 'togetherness'. it's freaky to think how fragile the western civilization is, but come to think of that, no detail in WWZ is un-plausible and no scenario is impossible.
This book will make you reflect a lot on western society, whilst some stories/interviews you'd wish would go on and on.