The Unlikely Pilgrimage of Harold Fry (2012), Rachel Joyce’s debut novel, is the deceptively simple tale of a sixty-something-year-old man who steps out of his Devon home to mail a letter but ends up walking to Berwick-on-Tweed...

What makes the difference between those books you just can’t tear yourself away from, and the ones that take a lot of time and determination to finish? “It was a real page-turner…I just couldn’t put it down…it kept me up long p...