FlashCard is an easy and interactive Picture Exchange Communication System (also named PECS).

"Children using PECS are taught to approach another person and give them a picture of a desired item in exchange for that item. By doing so, the child is able to initiate communication. The child with autism can use PECS to communicate a request, a thought, or anything that can reasonably be displayed or symbolized on a picture card." - NationalAutismResources