The full history of St. Patrick's day is captured here for the first time in The Wearing of the Green.

Illustrated with photos, the book spans the medieval origins, steeped in folklore and myth, through its turbulent and troubled times when it acted as fuel for fierce political argument, and tells the fascinating story of how the celebration of 17th March was transformed from a stuffy dinner for Ireland's elite to one of the world's most public festivals.

Looking at more general Irish traditions and Irish communities throughout the world, Mike Cronin and Daryl Adair...