Newbery Vs. Caldecott

Now that I have read and blogged about two Newbery Medal and five Caldecott Medal award winners, what does this distinction mean and what, if any, is the difference between the two? Both the Caldecott and Newbery Awards are yearly awards given by the Association for Library Service to Children, a branch of the American Library Association (ALA). These are separately awarded every January to a children's book that had been written the previous year. The Newbery Medal is named after John Newbery, a British bookseller during the 18th century. It is mainly given to a children's work of short fiction and was first awarded in 1922. According to the ALA website, the Newbery award is given to the "author of the most distinguished contribution to American literature for children." Although there is only one Newbery Medal winner per year, there are a few books each year that are chosen as Newbery Medal Honor books, which is similar to a first-runner-up award. The Caldecott Medal is named after Ralph Caldecott, an English illustrator during the 19th century. This award is limited to children's picture books, and it was first awarded in 1938. According to the ALA website, the Caldecot award is given to the "artist of the most distinguished American picture book for children." Like the Newbery Award, one book is chosen each year to be the Caldecott Medal Winner, but other books can be chosen to receive Caldecot Medal Honor awards.
Reference:
http://www.ala.org/ala/alsc/awardsscholarships/literaryawds/literaryrelated.cfm