Augmentative and alternative communication (AAC) refers to methods and tools that help individuals with communication challenges express themselves. This can include anything from simple picture boards to advanced electronic devices that generate speech. AAC is used by people with various conditions, such as autism, cerebral palsy, or stroke, to enhance their ability to communicate. AAC can be categorized into two main types: augmentative communication, which supports existing speech, and alternative communication, which replaces speech entirely. These tools can be customized to meet individual needs, making communication more accessible and effective for those who struggle with traditional verbal methods.