Patricia Hruby Powell’s children’s book “Josephine: The Dazzling Life of Josephine Baker” is written almost like scat: quick lines, be-bopping here and shooby-loobing there, rising and falling as though Josephine Baker herself was singing the story. It’s infectious, even in the sad parts. Your little one might not notice that hoppity-bop but once you do, you won’t be able to not see it.