'I loved this book' BONNIE GARMUS'A generous, compassionate book about the power of love and community' LOUISE KENNEDY'I can't recommend this one highly enough ' HARLAN COBEN'THIS is his best book' ANN PATCHETTTHE MILLION-COPY BESTSELLERBARACK OBAMA'S BOOK OF THE YEAR PICKAMAZON.COM NO.1 BOOK OF THE YEARBOOK OF THE YEAR IN: THE GUARDIAN, NEW YORKER, NEW YORK TIMES, TIME MAGAZINE, HARPER'S BAZAAR, OPRAH DAILY AND WASHINGTON POSTIn 1972, when workers in Pottstown, Pennsylvania, were digging the fo...