Acknowledgments & Disclaimer Author: Steve Willson

Photo Credits in order of appearance: Kreber/Corbis , Scott B. Rosen/Bill Smith Studio, Tetra Images/Tetra Images/Corbis, Scott B. Rosen/Bill Smith Studio (5), Masterfile Royalty Free, Scott B. Rosen/Bill Smith Studio, Radius Images/Punchstock, Scott B. Rosen/Bill Smith Studio (2), EML/Shutterstock, Hemera Technologies/PhotoObjects.net/Jupiter Images, Scott B. Rosen/Bill Smith Studio (2), Achim Prill/iStockphoto.com, Scott B. Rosen/Bill Smith Studio (3), Chris Clark/iStockphoto, Michael J Thompson/Shutterstock, Scott B. Rosen/Bill Smith Studio, Todd Taulman/Shutterstock, Scott B. Rosen/Bill Smith Studio, Stockbyte/Punchstock, Thinkstock/Punchstock, Scott B. Rosen/Bill Smith Studio, Courtesy of Louisville Ladder Group, Scott B. Rosen/Bill Smith Studio (4), Masterfile Royalty Free, Scott B. Rosen/Bill Smith Studio, Zedcor Wholly Owned/PhotoObjects.net/Jupiter Images, Andreea Manciu/iStockphoto. Illustrations by Precision Graphics.

The information contained in this and every Quamut guide is intended only for the general interest of its readers and should not be used as a basis for making medical, investment, legal or other important decisions. Though Quamut makes efforts to create accurate guides, editorial and research mistakes can occur. Quamut cannot, therefore, guarantee the accuracy of its guides. We disclaim all warranties, including warranties of merchantability or fitness for a particular purpose, and must advise you to use our guides at your own risk. Quamut and its employees are not liable for loss of any nature resulting from the use of or reliance upon our charts and the information found therein.