My baby twins have just turned one, and after half hearted attempts at signing with them for the past few months, they have just started joining in! It is so amazing to realise that they really understand even though they are so tiny, and already it's stopping tantrums when i know what they're actually asking for. This week they were able to ask their Grandma for milk! They love being understood and are really proud of their achievements. The book itself is brilliant, really good to look at, and easy to understand; the babies enjoy sitting and 'reading' it... having now been totally converted to baby signing, I'm ordering the rest of the set, and am determined to do more with them. Commend the BSL approach, as it makes sense to give them a basis with which to communicate with others later in life, rather than use ASL, effectively a `foreign' language. Highly recommended.