This third edition of The School Counselor’s Preparation and Professional Practice Desk Reference and Examination Study Guide is a comprehensive resource for both pre-service and practicing school counselors. It is intended to be used as a school counselor preparation course text, credentialing exam study resource, and comprehensive desk reference. The text material holistically addresses culturally sensitive practices and the professional, legal, and ethical principles of school counseling in today’s public K-12 schools, capturing the past, present, and future of the profession using a personable writing style that engages readers. The material meets preparation criteria for the NBPTS School Counseling National Certification assessment, School Counselor Preparation Comprehensive exams, state-specific school counselor licensure exams, and the Praxis School Counselor exam, which was recently adopted as the exam for earning the ASCA Certified School Counselor (ACSC) credential. The text includes a glossary of important terms, common acronyms, and real-world case studies for enriched discussions and enhanced understanding. Each chapter includes guided reflections and knowledge checks with end-of-chapter exam simulations and case studies to include correct responses and explanations for those responses. A cumulative end-of-text comprehensive simulation exam with responses is also included. The text covers the requisite information pre-service and practicing school counselors need to be the very best twenty-first century school counselors in accordance with contemporary research, the ASCA National Model, CAEP, CACREP, and NBPTS standards.