welcome a friend that I have been missing . . . The letter B goes B' B' B' B', like the bubbles in a bottle that I dip in the bath . . . The letter C goes K' K' K', like when I break the shell of a boiled egg . . . The sound of letters is an alphabet book unlike any other! This beautifully illustrated, colorful book of letters teaches the sound that the different letters make in a unique and fresh way.