Sian Ann Bessey was born in Cambridge, England, and grew up on the island of Anglesey off the coast of North Wales. She left her homeland to attend university in the United States, where she earned a bachelor's degree in communications, with a minor in English. She is a USA Today best-selling author.

Sian and her husband, Kent, are the parents of five children and the grandparents of four girls and two boys. They live in Idaho, and although Sian doesn't have the opportunity to speak Welsh very often anymore, Llanfairpwllgwyngyllgogerychwyrndrobwll­llantysiliogogogoch still rolls off her tongue.