AWESOME set of 2 hardcover books:  The Dangerous Book for Boys and The Pocket The Dangerous Book for Boys, Things to Do. Both in excellent condition although the Things to Do has some signs of wear on exterior.  Great general knowledge books!

From Google:

The bestselling book for every boy from eight to eighty, covering essential boyhood skills such as building tree houses*, learning how to fish, finding true north, and even answering the age old question of what the big deal with girls is.

In this digital age there is still a place for knots, skimming stones and stories of incredible courage. This book recaptures Sunday afternoons, stimulates curiosity, and makes for great father-son activities. The brothers Conn and Hal have put together a wonderful collection of all things that make being young or young at heart fun—building go-carts and electromagnets, identifying insects and spiders, and flying the world's best paper airplanes

THINGS TO DO:  A pocket-sized book of wisdom based on the bestselling phenomenon, The Dangerous Book for Boys, this portable edition includes some favorite activities from the original book, along with some even more dangerous new ones! With everything from how to win at poker, to how to make a paper hat, from skipping stones to writing a note in secret ink, the Pocket Book of things to do will appeal to all men and boys with an appetite for danger!