Washington & Leavers Principles & Practi

**Selected for 2026 Doody's Core Titles in Radiologic Technology**

Gain a meaningful foundation in radiation therapy with the only text that’s written by radiation therapists! With its problem-based approach, Washington and Leaver’s Principles and Practice of Radiation Therapy, Sixth Edition, helps you truly understand cancer management, improve clinical techniques, and apply complex concepts to treatment planning and delivery. Plus, with new artwork and up-to-date content that spans chemotherapy techniques, radiation safety, post-image manipulation techniques, and more; this sixth edition gives you all the tools you need to succeed in your coursework and beyond.

• NEW! Considerations explore how the radiation therapist role has changed due to the pandemic, the addition of remote work outside of administering treatment, and equipment changes
• NEW! Information enhances coverage of proton arc therapy (PAT) and artificial intelligence (AI)
• UPDATED! Expanded information on treatment setups for simulation procedures offers additional guidance
• NEW! Updated artwork throughout reflects modern radiation therapy practice
• Comprehensive radiation therapy coverage includes a clear introduction and overview plus complete information on physics, simulation, and treatment planning
• Chapter objectives, key terms, outlines, and summaries in each chapter help you organize information and ensure you understand what is most important
• End-of-chapter questions and questions to ponder provide opportunity for review and greater challenge
• Bolded and defined key terms are highlighted at first mention in the text
• Spotlight boxes highlight essential concepts and important information as they appear in the chapters

• Considerations about how the role changed because of pandemic, addition of remote work outside of administering treatment, changes to equipment
• Updating MRI
• Operational Issues Course
• Updated! Management for Radiation Therapists

Dr. Washington is one of the originating Authors of this title. He has over 35 years’ experience combined in radiation oncology administration, education, and operations with both MD Anderson Cancer Center and Memorial Sloan-Kettering Cancer Center.

Dr. Trad has been teaching for over 17 years starting as an Adjunct Lecturer and now serves as Program Chair at Texas State University.
Recipient of both Association of Educators in Imaging and Radiologic Sciences, Innovator of the Year Award, 2014 and Texas State University, College of Health Professions, 2012 Dean Nominee for the Presidential Award for Excellence in Teaching. Editorial Review Board member, 2021-present, Radiation Therapist.