We’d never heard of lightships before reading this wonderful picture book, but now we’re huge fans. From the 1820s until 1983, these stalwart ships served as floating lighthouses, guiding other ships in U.S. waters to safety. Author-illustrator Floca tells the story of one such ship with simple, effective text and oh-so-expressive watercolor drawings. Filled with humor and fascinating details, the pictures brilliantly convey the day-to-day life of the crew (and cat) and the signal importance of their work.