Communication plays a central role in a child’s development. However, many children with autism spectrum disorders experience delays in expressive language. Some may struggle to initiate communication, ask for help, or express basic needs like food, toys, or activities. When these challenges continue, frustration can build for both the child and their caregivers. This can make everyday interactions more difficult and may impact social skills over time.
The picture exchange communication system autism was designed to support children by providing a structured, visual way to communicate. Instead of relying only on speech, children learn to exchange a picture card to request what they need. This process helps build a functional communication system over time. Many families in New Jersey include this approach as part of a broader therapy plan. In many cases, this involves in-home ABA services, such as those offered by Apple ABA, where communication strategies are practiced naturally within daily routines to support effective communication. Families looking for ABA therapy in Bloomingdale NJ, can explore local in-home services that integrate communication systems like PECS into personalized therapy programs.
What Is the Picture Exchange Communication System?
The PECS system is a structured communication system that helps children with limited verbal language communicate using pictures. It was developed by Andy Bondy and Lori Frost in the 1980s through Pyramid Educational Consultants, along with resources from Pyramid Educational Products. The system has been widely used in programs such as the Delaware Autism Program and Delaware Autistic Program. PECS is a form of alternative communication and an evidence-based practice commonly used in applied behavior analysis.
The goal of this system is to help children initiate communication and express their needs independently. A child selects a picture of a desired object and gives it to a communicative partner. The partner responds by providing the item right away. This picture exchange process teaches that communication has a clear purpose and supports communicating effectively. Over time, many children build stronger functional communication skills and become more persistent communicators.
How the Picture Exchange Communication System Works
PECS is built on the idea that communication should be meaningful and functional. Instead of memorizing words or repeating phrases, children learn to communicate to get something they want or need. This approach helps them understand the purpose of communication and encourages independent interaction. During therapy, children are taught to exchange single pictures that represent a desired item. The communication partner responds immediately by giving the requested item, reinforcing the connection between communication and results. PECS is one of several autism communication devices used to support children who need alternative ways to express themselves. Early learning typically follows a simple process:
- The child selects a picture card representing a desired item
- The child gives the picture to a communication partner
- The partner acknowledges the request
- The child receives the item right away
This structured interaction helps build functional communication skills and confidence. As children progress, therapists introduce more pictures and more complex tasks within the exchange communication system PECS. ABA therapists also use reinforcement strategies, verbal prompts, and specific prompting along with systematic error correction procedures. These strategies improve picture discrimination and communication accuracy. Over time, many children begin combining pictures to construct simple sentences and express more complex ideas.
The Six Phases of the PECS Communication System
PECS communication is organized into six phases that gradually build communication independence. Each phase introduces new communication skills while reinforcing previously learned behaviors. Understanding these six phases helps parents and therapists track progress and adjust teaching strategies effectively within a structured PECS program.
Phase I – Physical Exchange
During Phase I, children learn the basic concept of exchanging a picture card for a desired object. The therapist guides the child through the process, helping them pick up the picture and give it to a communicative partner. When the child hands over the picture, the requested item is delivered immediately. This teaches that communication leads to meaningful outcomes and helps children begin to exchange single pictures independently.
Phase II – Distance and Persistence
In Phase II, the child learns to initiate communication from greater distances. The PECS communication book may be placed farther away, encouraging the child to move toward it and retrieve the picture. This stage builds independence and helps children become more persistent communicators. They begin actively seeking out communication opportunities instead of waiting for prompts.
Phase III – Picture Discrimination
Phase III introduces picture discrimination, where the child learns to choose between two or more pictures. The communication book may include options such as a toy and a snack. The child must select the correct picture to receive the desired object. This stage strengthens functional communication skills and improves accuracy in requests.
Phase IV – Sentence Structure
During Phase IV, children begin building simple sentences using a detachable sentence strip. They learn sentence structure by combining pictures, often with sentences starting like “I want.” For example, a child may construct simple sentences such as “I want + a ball.” This phase prepares children for more advanced communication.
Phase V – Answering Questions
In Phase V, children learn to answer questions such as “What do you want?” Instead of only initiating communication, they begin responding using their picture communication system. This stage introduces more structured interaction and helps children answer questions using visual supports.
Phase VI – Commenting
The final phase focuses on commenting and sharing information. Children use pictures to express observations, such as “I see an airplane” or “I hear music.” Phase VI supports more natural communication and helps expand language skills beyond requests.
Benefits of the Picture Exchange Communication System for Autism
The PECS communication system is widely recognized as an evidence-based practice for supporting communication development in children with autism spectrum disorders. Research suggests that many children who use the PECS system show improvements in communication skills while also reducing challenging behaviors. When children cannot express their needs, frustration often builds and affects daily interactions. A structured communication system like PECS helps create clear and predictable ways to communicate. As a result, children can interact more effectively with others.
PECS supports several key areas of communication and development. It encourages independent communication instead of relying on prompts and helps children request desired items more clearly. The system also reduces frustration by giving children a reliable way to express their needs. In many cases, it helps build early language and verbal behavior skills while supporting the development of spoken language. As children begin to understand that PECS works, they often become more confident and motivated to interact with others.
How ABA Therapists Use PECS in Home-Based Therapy
Many children learn communication skills best in environments where they feel comfortable and familiar. For this reason, many ABA therapy programs implement PECS into home-based therapy sessions. In-home therapy allows therapists to teach communication during everyday routines, not just structured sessions. This approach helps children practice skills in real-life situations and build consistency. Over time, children learn to use communication more naturally throughout their day.
During in-home sessions, therapists create opportunities for communication during daily activities. These moments help children practice functional communication in meaningful ways. Common examples include requesting snacks during meals, asking for toys during playtime, requesting help with tasks, and interacting with family members. This natural approach supports skill generalization and improves social skills across settings. Families in Passaic County, including Bloomingdale, New Jersey, often seek providers offering in-home ABA therapy to support communication development. Therapists also work closely with parents to reinforce skills outside sessions, ensuring communication practice continues consistently.
What Materials Are Needed for PECS?
Implementing the PECS system requires simple but structured materials that support picture-based communication. These tools are designed to be easy to use, portable, and adaptable to a child’s daily routine. While they may look basic, each component plays a role in teaching functional communication. Therapists use these materials to create consistent learning opportunities and support skill development. Over time, children become more familiar with using these tools to communicate independently.
Common PECS materials include a PECS communication book that stores picture cards, picture cards representing objects or activities, and a detachable sentence strip for building simple sentences. Velcro strips are used to hold and organize pictures, making them easy to access and exchange. Visual symbols are also included to represent daily items and actions. Therapists often customize these materials based on the child’s interests and environment. This personalization helps increase motivation and supports consistent communication practice.
Can PECS Help Children Develop Speech?
One common misconception is that alternative communication systems prevent children from developing spoken language. However, research suggests the opposite may be true. Communication systems like PECS are designed to build functional communication skills, not replace speech. By giving children a reliable way to express their needs, they become more engaged in communication overall. This increased engagement can support language development.
Many children who learn PECS begin to develop spoken language as their confidence grows. Because the system reinforces communication attempts, children often become more motivated to express themselves verbally. Some studies show that children start combining spoken words with picture exchange over time. This progression suggests that PECS can support speech development rather than limit it.
When Should a Child Start Using PECS?
Early communication support can make a meaningful difference for children with autism. Many children begin using PECS during early intervention, especially when communication delays first become noticeable. Starting early allows therapists to build foundational communication skills during a critical stage of development. It also helps reduce frustration by giving children a clear way to express their needs. Early use of PECS can support long-term progress in communication and social interaction.
Therapists assess readiness for PECS based on several factors. These include the child’s ability to recognize pictures and their motivation to request items. Applied behavior analysis programs often include communication assessments to guide this decision. These evaluations help identify the most effective strategies for teaching communication skills. With the right support, therapists can implement PECS at the appropriate time to match the child’s needs.
Conclusion
Learning how the picture exchange communication system for autism (PECS) works can give families a clearer path toward supporting their child’s communication development. When children have a reliable way to express their needs, ask for help, and interact with others, frustration often decreases and confidence begins to grow. With consistent guidance, structured teaching, and supportive environments, PECS can help children build functional communication skills that carry into daily routines and social interactions.
At Apple ABA, we provide compassionate, evidence-based ABA therapy tailored to each child’s developmental needs. Serving families across New Jersey, including Walpack, Sussex County, Bloomingdale, and surrounding communities, our team specializes in personalized in-home ABA programs, comprehensive assessments, and ongoing parent training. We work closely with families to support communication, social, and daily living skills at home, in school, and throughout everyday life. Contact us today to learn more about our flexible, family-centered services and schedule a consultation with a licensed in-home ABA therapist.
FAQs
Why use PECS with autism?
PECS is used with autism because it helps children communicate in a clear and structured way when verbal language is limited. By exchanging pictures to request items or express ideas, children learn that communication leads to meaningful outcomes. Many children become more confident communicators and show reductions in frustration-related behaviors.
Why do we no longer use PECS?
PECS is still widely used today and remains an evidence-based communication intervention. However, some children transition from PECS to other augmentative communication tools such as speech-generating devices once their communication skills improve. The goal of PECS is to build functional communication, and therapists may adapt communication systems as a child develops new skills.
What’s the difference between PECS and AAC?
PECS is one type of augmentative and alternative communication system, while AAC is a broader category that includes many communication tools. AAC methods may include speech devices, sign language, communication apps, or picture systems. PECS specifically focuses on picture exchange to teach children to initiate communication independently.
What is the communication system for autism?
There is no single communication system used for autism because every child has unique communication needs. Some children benefit from PECS, while others may use sign language, speech therapy, or digital communication devices. Therapists evaluate each child individually to determine which communication strategies will be most effective.



