Caldecott Award 1938-Present The Caldecott Award is given to the best picture book of the year for illustrations. There are some great book artwork here and lots of ideas for starting your own "Medal" library at home or at school. Houston has many of the past winners and honor books. Every year we hold a "Houstoncott" Caldecott award ourselves and vote for the best illustrated new book we have gotten in the last year. I will announce on the library page the new Houstoncott nominees and award winners around January when the new Caldecott will be announced.