Yvonne K. Lavelle, creator of "The Kiddisign Baby and Toddler Signing Course in British Sign Language," is an experienced Baby Signer, a Certified Presenter with Sign2Me in America and also holds a British Sign Language Qualification. This book has been tailored to teach a parent, a nursery or carers, how to facilitate simple integration of British Sign Language into a baby or child's day through the use of adapted nursery rhymes. You can start signing with very young babies and toddlers but the most effective age to sign with your baby is from 5 months old. There is no age limit to learning this type of signing and the older a child becomes, the quicker they imitate the sign and make the connection to the word and action. Speech and signs are communicated together so that the child will create a "mind-word-picture" situation in their minds and their speech will be accelerated rather than delayed.