Click, Clack, Moo: Cows That Type is a 2000 children's book written by Doreen Cronin. Illustrated by Betsy Lewin, the Simon & Schuster book tells the story of Farmer Brown's cows, who find an old typewriter in the barn and proceed to write letters to Farmer Brown, making various demands and then going on strike when they aren't met. A book and CD edition was also released, with the CD being narrated by Rik Mayall. The CD features three tracks; tracks one and three featuring the story being read with background music and sound effect track, track two being solely the story without added audio.