Chris Santella is the author of 21 books, including 17 titles in the Fifty Places series. Based in Portland, Oregon, Biking with Grandma is his first picture book.

Chris Santella explores the world's greatest walking adventures. Some, like the Lunana Snowman Trek in Bhutan and the Kangshung Valley Trek in Tibet, are grueling multi-week adventures at altitudes sometimes eclipsing 4500 metres. Others, like Japan's Nakasendo Trail, move leisurely from village to village. Whether it describes climbing to view mountain gorillas in Rwanda or strolling from bistro to bistro along Italy's Amalfi Coast, each of the fifty chapters strives to capture the special characteristics that make these hiking venues inspirational, must-do experiences for the avid walker. The places are brought to life with more than 40 arresting colour photographs.