This handbook comprehensively covers the fundamental key concepts in coaching research and evidence-based practice and shows how coaching can be applied to multiple contexts. It provides coaching scholars, researchers and practitioners with detailed review of the key concepts, research and new insights into coaching research and practice. This key reference work includes over 70 contributions from more than 110 leading researchers and practitioners in the field across countries, and deftly combines theory with case studies and applications from psychology, sociology, business administration, organizational studies, education, and communication studies. This handbook, edited by the top scholars in the field, is meant for an academic as well as a professional readership, and is an invaluable resource for coaches, clients, coaching institutes and associations, and students of coaching.

Siegfried Greif, PhD, is retired Professor at the University of Osnabrueck, Germany (Chair of Work and Organizational Psychology). He is member of the German Psychological Society, the German Coaching Federation (DBVC) and the International Society of Coaching Psychology (ISCP) and is a member of the Scientific Advisory Council of The Institute of Coaching (IoC) associated with Harvard Medical School, USA. He teaches coaching at different Universities and gives courses to practitioners associated with the Free University of Berlin. The major fields of his research are coaching, stress at work and change management. He has authored and edited of 19 books and published many book chapters and articles in German and English, especially on coaching, change management, stress at work and evaluation instruments, see his publications list on ResearchGate.

Heidi Möller has a doctorate in psychology (psychotherapy in total institutions), habilitationon quality criteria of supervision from TU Berlin, and is a psychoanalyst, teaching therapist for depth psychology and Gestalt therapy, teaching supervisor, organizational consultant and coach. In 2002, she was Chair of Communication Psychology and Psychotherapy at the University of Innsbruck. Since October 2007, she has been Professor for Theory and Methodology of Consulting at the University of Kassel.  She is member of the German Psychological Society, the German Coaching Federation (DBVC)The major fields of his research are research in coaching outcomes and process research., development of the counsellor and psychotherapist personality and gender justice in organisations. She is the head of numerous postgraduate study programmes, currently the Masters in Coaching, Organisational Counselling (COS) and Supervision, UNIKIMS, Kassel.

Wolfgang Scholl is Emeritus Professor at Humboldt University (Chair of Organizational and Social Psychology), Berlin,Germany. He is Initiator and Partner of artop GmbH (Work and Technology Design, Organizational and Human Resource Development Ltd.) which is a coopted as institute at Humboldt University and is active in consulting, training, and applied research. He authored several books and many articles in German and English, especially on groups, innovation processes, organizational decision-making, power relations, knowledge production, basic interaction theory, and - last not least - on the relations between research and practice.

Jonathan Passmore is Professor of Coaching and Behavioural Change at Henley Business School, a Fellow of the British Psychological Society and an ICF credentialled coach. He has authored and edited of 30 books including Excellence In Coaching, Top Business Psychology Models, Becoming a Coach, and is the Series Editor for the Wiley Blackwell Organisational Psychology Series. He has also published over 100 scientific papers and bookchapters and is the editor of the International Coaching Psychology Review, the premier coaching peer review journal. He was listed as a Global Top 8 Coach in the Marshall Goldsmith list in 2019 and has won awards from the British Psychological Society, Business Psychologists and Association for Coaching for his work. 

Felix Mueller is an independent coach, leadership development expert and facilitator based in Munich, Germany. He holds masters degrees in business from the University of St. Gallen in Switzerland (lic.oec.HSG) and Duke University's Fuqua School of Business in the USA (MBA), as well as a psychology-oriented MSc in coaching and behavioural change from Henley Business School at the University of Reading in the UK. Since 2013, he has been supporting leaders and managers from mid- to top management as coach; he is certified as Associate Certified Coach (ACC) by the International Coaching Federation (ICF) and as MBTI Step I& II Certified Practitioner. His research interest lies in building bridges between science and practice so that coaching becomes more rooted in evidence.

Coaching Definitions and Concepts (Siegfried Greif).- How can Coaching Practitioners Learn from Science? (Wolfgang Scholl).- Affective Change for Action Control and Self-growth in Coaching (Anna Maria Engel).- Approaches to the Coaching Process: an Interaction-analytical View (Patrizia M. Ianiro).- Assessment in Coaching (Heidi Möller).- Behavioral Modification and itsRelevance in Coaching (Martin Hautzinger).- Brain-Focused Coaching (Lyra Puspa).- Bullying as a Topic in Coaching (Dieter Zapf).- Burnout: Characteristics and Prevention in Coaching (Siegfried Greif).- Business Coaching in Top Management (Uwe Böning).- Career Coaching (Simone Kauffeld).- Coaching in the Context of Organizational Change (Katrin Bickerich).- Coaching for Sustainability (Joel A. DiGirolamo).- The Coaching Relationship (Sonja M. Mannhardt).- Coaching Supervision (Silja Kotte). - Communication as a Method and as a Topic in Coaching (Wolfgang Scholl).- Complex Problem Solving in Coaching (Ulrike Starker).-Conflict Transformation in Coaching (Albert Vollmer).- Crises as a Problem in Coaching (Johannes Sperling).- Culturality in Coaching (Sunny Stout-Rostron).- Decision-making as a Focus in Business Coaching (Cornelia Strobel).- E-Coaching - An Overview (Harald Geißler).- Embodiment and its Importance for Coaching (Maja Storch).- Emotion Regulation and Coaching (Christian Sell).- Emotional Intelligence and Its Relevance for Coaching (Dana L. Joseph).- Ethics and Ethical Competence in Coaching (Christoph Schmidt-Lellek).- Family Businesses in Coaching: Specific Dynamics (Arist v. Schlippe).- Feedback for Performance Development: A Review of Current Trends (Marie-Hélène Budworth).- The Forms of Contact An Approach to Theme, Process, State, and Methods in Coaching (Thomas Bachmann).- The Future of AI in Coaching (David Clutterbuck).- Gender Theoretical Impulses for Theory and Practice of Coaching (Mechthild Bereswill).- Goals in Coaching Practice (Anthony M. Grant).- Growth- and Security-Orientation in Coaching: Success through motivational fit (Andreas M. Böhm).- Health in Coaching (Eva Bamberg).- Health Coaching Research (Irina Todorova).- Implicit Leadership Theories and their Importance in Coaching (Belinda Seeg).- Individual and Collective Defense Mechanisms (Heidi Möller).- Insights through Coaching (Felix Müller).- Interaction as a Basic Theme in Coaching (Wolfgang Scholl).- Interaction Dynamics in Groups (Nale Lehmann-Willenbrock).- Language and Meaning as Basic Topics in Coaching (Tobias Schröder).- Leadership Coaching (Lisa Weihrauch).- Leadership Theories as Knowledge Base in Coaching (Jörg Felfe).- Learning as the Basis for Coaching (Annette Kluge).- Meaning as a Topic in Coaching (Reinhard Stelter).- Means of Verbal and Nonverbal Communication in Coaching (Astrid Schütz).- Mental Disorders in Coaching (Heidi Möller).- Mentalization in Coaching (Svenja Taubner).- Metaphors of Organization and their Meaning in Coaching (Wolfgang Scholl).- Micropolitics, Gender and Emotional Labor in Coaching (Christiane Jüngling).- Mindfulness in Coaching (Christine Bosch).- Motivation and Goal Setting with Motto-Goals in Coaching (Julia Weber).- Motivation, Volition and Implementation in Coaching (Siegfried Greif).- Motivational Interviewing as a Tool for Coaching in the Workplace: Coaching for Organizational Change (Amelie V. Güntner).- The Organizational Context in Coaching (Astrid Schreyögg).- Organizational Culture and Coaching (Levi R. G. Nieminen).- Perception and Judgement Formation and their Significance in Coaching (Lisa Schubert).- Personality Development and Coaching (Jule Specht).- Power and Micropolitics as a Topic in Coaching (Wolfgang Scholl).- Problems of Teamwork as a Topic in Coaching (Jürgen Wegge).- Professionalization in Coaching (Christoph Schmidt-Lellek).- Pseudoscience and Charlatanry in Coaching (Siegfried Greif).- Quality of the Coaching Service (Friedemann W. Nerdinger).- Reducing Decision Error and the Role of Team Coaching (Simon Werther).- Resilience - A Fashionable Trend or a Paradigm Shift in Prevention and Coaching? (Anja Limmer).- Roles as a Basic Theme in Coaching (Stefan Kühl).- Self-Concepts, Self-Discrepancies and their Significance in Coaching (Theresa Wechsler).- Self-Development and its Importance in Coaching (Thomas Binder).- Self-reflection in coaching (Siegfried Greif).- Side Effects of Coaching for Clients and Coaches (Carsten C. Schermuly).- Stress and Stress Management in Coaching (Siegfried Greif).- Success Factors in the Coaching Process (Peter Behrendt).- Systems Theories as a Basis for Coaching (Jürgen Kriz).- Team Coaching and Effective Team Leadership (Martian Slagter).- Team Coaching Research: the State of Play (Rebecca Jones).- Transference and Countertransference and their Significance for Coaching (Astrid Schreyögg).- Transformative Learning and Its Relevance to Coaching (Beth Fisher-Yoshida).- Understanding in Coaching: An Intersubjective Process (Wolfgang Scholl).- Values and their Importance in Coaching (Klaus Boehnke).- Workplace Coaching Research - Charted and Uncharted Territories (Silja Kotte).