It presents the definition of 'learning disability' formulated by the Canadian Association for Children and Adults with Learning Disorders (CACLD). Pointing out that learning disabilities may be accompanied by other problems, the paper emphasizes that identification of the learning disabled and their needs requires a comprehensive evaluation process: analyzing the manifest disability; testing basic competencies, including but not limited to a standard intelligence test; assessing of moderator variables; examining medical or neurological factors; and interpreting and integrating the information obtained. Finally, the paper emphasizes the need for specialists in learning disabilities to be trained within each professional group, since not every psychologist, teacher, physician, etc., is prepared to evaluate learning disabilities or to plan or carry out treatment programs. 5 footnotes and 14 references.