I'm going to start with saying that I'm not much of a reader. I have plenty of books that I do like to read, I just never seem to be able to finish one. What usually happens is that I start a book like 'In Search of Time' and before I'm finished something in it sparks my interest in a similar topic which sends me to 'The Clockwork Universe'. 'The Elegant Universe' led me to 'Schrödinger’s Kitten' which led me to 'The Fabric of the Cosmos'. Its a never ending cycle! Until I stumbled upon 'The World Without Us' http://www.worldwithoutus.com/index2.html This book is a great read. It is amazingly mind-blowing to read about certain changes that would happen without us, both good and bad. Its also very saddening to read about how big of a mark we have made and will leave behind. I highly recommend this book to anyone!
