Books

Dr. Hewitt has published over 300 clinical research papers and many books and book chapters.  This writing focuses on the conceptualization, assessment, and treatment of perfectionism and several of the books synthesize the research and the clinical work for perfectionism. 

Perfectionism: A Relational Approach to Conceptualization, Assessment, and Treatment
Grounded in decades of influential research, Dr. Paul Hewitt explores the development of perfectionism, its underlying psychological mechanisms, and the emotional costs associated with it. He provides effective strategies for addressing perfectionism in psychotherapy.

Dr. Hewitt and his co-authors describe how perfectionistic tendencies—rooted in early relational and developmental experiences—make people vulnerable to a wide range of clinical problems. They present an integrative treatment approach and demonstrate ways to tailor interventions to the needs of individual clients.

Throughout the book, vivid clinical illustrations make the core ideas and techniques concrete. In addition, a group treatment model is detailed and state-of-the-art assessment tools are discussed in this book.

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Perfectionism in Childhood and Adolescence: A Developmental Approach

This book explores the mental health impacts of perfectionism and its influence on achievement, shedding light on the diverse and often unexpected ways children and adolescents display perfectionistic tendencies within their family, school, and social settings. Most importantly, the authors offer clinical interventions aimed at helping perfectionistic youth gain perspective and embrace their limitations.

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Group Psychodynamic-Interpersonal Psychotherapy
This book presents a comprehensive, evidence-based treatment that combines individual case formulation with group interventions informed by contemporary psychodynamic and interpersonal theories.

Designed as a manual for training and teaching, this book shows how group psychodynamic-interpersonal psychotherapy (GPIP) practitioners combine knowledge of the interpersonal factors that underlie each patient’s symptoms, with a sound understanding of group process theory and stages of group development, to effect real and lasting change.

Chapters include a wealth of hands-on tools including practice guides, self-study quizzes, clinical vignettes, and reflective questions. The authors also provide instructions on process and progress monitoring, which allows therapists to access timely feedback about the functioning of the group and each patient, improving their outcomes by highlighting what is working and what needs to change.

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About the Authors

Giorgio A. Tasca, PhD, is a full-time professor in the School of Psychology, University of Ottawa, Canada, and director of the Psychotherapy Practice Research Network. He is past president of APA Division 49 (Society of Group Psychology and Group Psychotherapy), an APA fellow, and editor of Group Dynamics. Dr. Tasca teaches at l’universita degli studi di Bergamo, and is scientific director of la Scuola Psicoterapia Integrata in Bergamo, Italy. He conducted several randomized controlled trials of group psychotherapy and published on advanced statistical modeling for group research. He lives in Ottawa, Canada. Visit his University of Ottawa profile page and follow @giorgiotasca.

Samuel F. Mikail, PhD, is an adjunct faculty member at the University of Waterloo and maintains a private practice in Newmarket, Canada. He is a clinical psychologist registered with the College of Psychologists of Ontario with more than 25 years of experience in adult clinical, health, and rehabilitation psychology. Dr. Mikail was a founding member of the Ottawa Group Psychotherapy Association and served as a presidential officer of the Canadian Psychological Association (2017–2020). He has published numerous articles in peer reviewed journals and books spanning the fields of mental health, health psychology, chronic pain, and disability and rehabilitation. Visit his website here.

Paul Hewitt, PhD, is a professor of psychology at the University of British Columbia, Canada. He is a Fellow of the Canadian Psychological Association and has been cited as one of the top 10 Canadian clinical psychology professors for research productivity. He has published numerous books, chapters, and journal articles on perfectionism, psychopathology, and psychotherapy.

Additionally, the cover of this book is painted by none other than Dr. Hewitt’s wife, Barbara Calvert!

A Clinical Psychology: A Modern Health Profession
Boston: Pearson

Linden, W. & Hewitt, P. L. (2012)

The Multidimensional Perfectionism Scale: Technical Manual
Toronto: Multihealth Systems Inc.

Hewitt, P. L. & Flett, G. L. (2004)

Perfectionism: Theory, Research and Treatment
Washington: American Psychological

Flett, G. L. & Hewitt, P. L. (2002)

Perfectionism: A Relational Approach to Conceptualization, Assessment, and Treatment. Available in Russian.

Hewitt, P. L., Flett, G. L., & Mikail, S. F. (2017)

Perfectionism: A Relational Approach to Conceptualization, Assessment, and Treatment. Available in Italian.

Hewitt, P. L., Flett, G. L., & Mikail, S. F. (2017)