"Let's Talk! Developing Baby's First 100 Words" helps parents guide children in developing their vocabulary for the most common 100 words babies first speak. In this second book of my "Developing Baby's First 100 Words" series, together we will teach your children the words most used by infants in their first few months of speech. These are words involving the most common pronouns, names for people your child might see every day, and the names of directional locations like up, down, and here.