Mother Nature Network is giving away some of our favorite green books to keep you busy by your favorite rivers and oceans this summer.

One lucky Facebook fan will win the following five books:

The New Healing Herbs by Michael Castleman

Salmon in the Trees by Amy Gulick

The Circumference of Home: One Man's Yearlong Quest for a Radically Local Life by Kurt Hoelting

The Green Blue Book: The Simple Water-Savings Guide to Everything in Your Life by Thomas M. Kostigen

Aunt Epp's Guide for Life: Miscellaneous Musing of a Victorian Lady by Elsbeth Marr

The Land of Curiosities: Adventures in Yellowstone, 1871-1872 by Deanne Neil

On June 1, we will pick one Facebook fan (via randomized selection) to win these six books, so please FAN US NOW. If you are an existing Facebook fan of Mother Nature, don't worry — you're already entered to win.  

Our Facebook page gives you the daily rundown of the top stories on MNN. Our community is growing, and we want you to grow with us!  

Read the official rules here