Caroline Leavitt (“Is This Tomorrow”) reads at 7 p.m. at Barnes Noble, 660 Beacon St. . . . Gary Greenberg (“The Book of Woe”) reads at 7 p.m. at Harvard Book Store . . . Jennifer Margulis (“The Business of Baby”) reads at 7 p.m. at Back Pages Books, Waltham . . . Juliette Fay (“The Shortest Way Home”) reads at 7 p.m. at Tufts Library, Weymouth . . . Linda Barnes (“The Perfect Ghost”) reads at 7 p.m. at the Book Shop, Somerville
