You can download PDF files of the 2nd edition of Energy for Keeps for $9.95. You may use either Paypal, Visa or MasterCard. (The 3rd edition is not available in electronic format.) Once we have received your payment, you will receive an e-mail that will tell you how to access to the Energy for Keeps PDF files. Please note that the authorization process may take up to 48 hours, especially on weekends. Also, note that Paypal payments may process faster than credit card payments. Pay for the download using PayPal Pay for the download using Visa or MasterCard Once you have paid, you can access the download page. NOTE: No portion of Energy for Keeps may be reproduced for publication or for sale without written permission from the Energy Education Group. Teachers are permitted to make copies of portions needed for their students. If you have problems with or questions about these files, please e-mail us at energyforkeeps@aol.com or phone 415.435.1527. To order a bound copy of Energy for Keeps, click here. Teachers: Information for teachers, student activities, and other classroom tools are free.