What is the author's tone in Travels by Michael Crichton?

Travels by Michael Crichton has a unique tone for a memoir. Crichton is well known for being outspoken, straightforward and unapologetic. This book reflects that same tone without being overpowering or biased to the point of being viewed as the work of a zealot who has converted from the scientific community to one that has stronger roots in the metaphysical realm.