Front Cover: © Martin Molcan | Dreamstime.com
Title Page: Sheepdog © Dominic Arizona Bonuccelli
Public Domain via Wikimedia Commons: here, here
Additional Photography: Dominic Arizona Bonuccelli, Orin Dubrow, Cameron Hewitt, Lauren Mills, Jessica Shaw, Rick Steves, Gretchen Strauch. Photos are used by permission and are the property of the original copyright owners.