Based on the teaching principles of Applied Behaviour Analysis (ABA), the PECS method enables people with a speech deficiency to communicate in a functional and independent manner.
Wesco drew their inspiration from this method and offer realistic picture books linked with the person's environment. It is therefore possible for them to communicate and express their concrete, physical and emotional needs to others.

A series of everyday activities illustrated and organised according to the following themes: in the house, mealtime, at school, games, sport, journeys. Each theme is associated with a colour making it easier to identify the different groups.