Juan Antonio Díaz-Garrido holds a PhD in Clinical Sciences from the University of Las Palmas de Gran Canaria, Spain, and is a clinical psychologist specialized in contextual-behavioral therapies working at the Dr. Negrín University Hospital of Gran Canaria (HUDGCDN), Spain. He is co-editor of the book Terapia de Aceptación y Compromiso en Psicosis: Aceptación y Recuperación por Niveles (ART) [Acceptance and Commitment Therapy in Psychosis: Acceptance and Recovery by Levels (ART)] (Pirámide, 2021) and teaching director of several editions of the specialized training course in intervention in psychosis jointly developed by ITACA training and the Madrid Open University (UDIMA), Spain. He currently coordinates and participates in various research projects associated with the HUDGCDN Psychiatry Service.

Raquel Zúñiga is a clinical psychologist working at the acute hospitalization unit of the University Hospital Complex of the Canary Islands (CHUC). She is specialized in neuropsychology and contextual models and is co-editor of the book Terapia de Aceptación y Compromiso en Psicosis: Aceptación y Recuperación por Niveles (ART) [Acceptance and Commitment Therapy in Psychosis: Acceptance and Recovery by Levels (ART)] (Pirámide, 2021). She currently participates in various research projects associated with the HUDGDN Psychiatry Service.

Horus Laffite is a clinical psychologist working at the Dr. Negrín University Hospital of Gran Canaria, Spain. He is specialized in neuropsychology and contextual therapies and holds a law degree. He is co-editor of the book Terapia de Aceptación y Compromiso en Psicosis: Aceptación y Recuperación por Niveles (ART) [Acceptance and Commitment Therapy in Psychosis: Acceptance and Recovery by Levels (ART)] (Pirámide, 2021) and currently co-directs the specialized training course in intervention in psychosis jointly developed by ITACA training and the Madrid Open University (UDIMA), Spain. He participates in various research projects associated with the HUDGDN Psychiatry Service.

Eric Morris is a Senior Lecturer in the School of Psychology and Public Health at La Trobe University and a Consultant Clinical Psychologist at Northern Health in Melbourne, Australia. He is a founding member and former director of the Acceptance and Commitment Health Special Interest Group of the British Association for Behavioral and Cognitive Psychotherapies. Eric develops research projects on psychological approaches to support recovery from psychosis, including Acceptance and Commitment Therapy. He is co-editor of the book Acceptance and Commitment Therapy and Mindfulness for Psychosis (Wiley, 2013) and co-author of the book ACT for Recovery from Psychosis (Context Press, 2018). He is a member of the Association for Contextual Behavioral Science.