Introduction -- Effects of complex trauma in children -- Central aspects of ITCT-C -- Assessment -- The assessment-treatment flowchart for children (ATC-C) and the -- Problems-to-components grid (PCG-C) -- Characteristics and tools of the therapy environment -- Relationship building and support -- Safety interventions -- Psychoeducation -- Advocacy and systems interventions -- Distress reduction and affect regulation training -- Facilitating positive identity -- Cognitive and emotional processing -- Relational/attachment processing -- Interventions with caretakers -- Family therapy -- School-based and other adaptation of ITCT-C -- Supervision and therapist self-care.