by Pyramid Educational Consultants
PECS was developed in 1985 by Andy Bondy, PhD, and Lori Frost, MS, CCC-SLP, at the Delaware Autism Program. Pyramid Educational Consultants, founded by its creators, provides training, materials, and certification globally. The system requires no technological prerequisites and has been validated in hundreds of peer-reviewed studies.
PECS teaches communication in six structured phases: physical exchange of a single picture, persistence and distance across settings, picture discrimination from an array, forming a sentence strip ("I want ___"), responding to "What do you want?", and spontaneous commenting. Each phase builds on the previous to develop functional, generative communication without requiring eye contact, imitation, or verbal prompting as prerequisites. Pyramid Educational Consultants offers training workshops, the PECS Implementer Certification, and a companion PECS Phase III+ app for iOS and Android.
Developed for preschool and school-age children with autism spectrum disorder, PECS is also widely used with individuals of any age who have intellectual disabilities, developmental delays, Down syndrome, or other complex communication needs. Training is available for both professionals and family members.
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