A Duck in a Sock is the first book in the Orca Two Read series designed for shared reading between a child learning to read and an experienced reader. The left page has longer text for an adult to read aloud to someone learning to read. The right page has shorter text for the learner to read aloud. Inside you'll find four stories that introduce one new phonogram (a letter or combination of letters that represent a sound) in each story: the ck, sh, ch and th phonograms. Each story builds on the previous ones by including words with the phonograms already introduced.