The book includes contributions from Audrey Adeyemi, Tasha Bailey, Kelly Brackett, Jamie Butterworth, Alix Hearn, Evania Inward, Irene Mburu, Sasha Morphitis, Magda Raczynska, Nadja Rolli, Zisi Schleider, and Anna Tuttle.

One Tree, Many Branches: The Practice of Integrative Child and Adolescent Psychotherapy celebrates the twentieth anniversary of the pioneering child and adolescent psychotherapy and counselling training organisation Terapia and the achievements of its trainees , tutors, and staff, who provide highly specialised counselling, psychotherapy, and bespoke mental health services for young people, children, parents, and families. Terapia works with individuals, organisations, schools, and the statutory and non-statutory sector and is a strong voice for child psychotherapy as a distinct and specialist profession. Therapeutic work with children requires a different set of skills and knowledge to that of adult psychotherapists. For example, much of the work is non-verbal and uses play and metaphor alongside talking. It also requires involvement with the system around the child, such as parents, families, and professionals, and the management of conflicting agendas and politics to act on behalf of the child.

Subjects discussed within its pages include ecopsychotherapy, autism, the lack of male psychotherapists, working with refugees, racial trauma, female genital mutilation, working in closed communities, and foetal alcohol spectrum disorder. The book is essential reading for all who work with children and opens up exciting and pioneering new approaches for meeting the multifarious needs of our children and adolescents today.