Introduction 1. Defining Autism Spectrum Disorder in Cognitively Able Adults (Asperger Syndrome) 2. Conceptualization of Mental Health Problems in Cognitively Able Adults with Autism Spectrum Disorder (Asperger Syndrome) 3. The Initial Assessment 4. Individualized Case Formulation and Treatment Plan 5. Psychoeducation and Orientation to Treatment 6. Intervention: Increasing Skills to Address the Core Problems of Autism Spectrum Disorder 7. Intervention: Addressing Comorbid Mental Health Problems 8. Intervention: Addressing Emotion Regulation Problems Using Mindfulness-Based Strategies 9. Adjunctive Therapies and Interdisciplinary Collaboration 10. Obstacles to Treatment and How to Address Them 11. Ending Treatment and Looking Ahead Appendix. Therapy Resources