This document discusses learning disabilities. It defines a learning disability as a classification that causes difficulties in learning in a typical manner, often due to unknown factors that affect the brain's ability to process information. Learning disabilities can make it challenging for individuals to learn as quickly or in the same way as others. The document outlines several types of learning disabilities, including dyslexia, dysgraphia, dyscalculia, and nonverbal learning disabilities. It also discusses how learning disabilities are diagnosed through testing of cognitive abilities, academic performance, and classroom observations.