In the fall of 1778, Noah Webster’s father handed him a crisp eight-dollar bill. “I can do no more for you,” said Pa, according to W is for Webster (Farrar, Straus and Giroux, $17.99), a fascinating picture book written by Tracey Fern and skillfully illustrated by Boris Kulikov. Pa had sent Noah to school and even university, but Noah didn’t seek one of the conventional professions afforded by that path; instead, Noah collected words. Ages 7-10