Dr Joel Vos, PhD, MSc, MA, CPsychol, is a psychologist, philosopher, researcher and psychological counsellor in the UK, specialised in existential psychology and psychotherapies. He is researcher at the Metanoia Institute and leads the Professional Doctorate in Existential Psychotherapy and Counselling at the New School of Psychotherapy and Counselling. He is the organiser of the IMEC International Meaning Conferences and the London Critical University. He has over 70 research publications. Recent books include Mental health in crisis (SAGE) and Meaning in Life: an evidence-based handbook for practitioners (Palgrave McMillan).

PART I. Background
1. Introduction
2. The Schools of TA
3. Overview of Research on TA
PART II. Evidence-based conceptual model of TA-psychotherapy
4. Clinical phenomenon: What are the client's problems?
5. Aetiological model: How did the client's problems start?
6. Therapeutic Aims and Outcomes: What can be achieved in TA?
7. Therapeutic mechanisms: How can therapists help clients?
PART III. Evidence-based TA Psychotherapeutic Competencies
8. Assessment Competencies
9. Relational Competencies
10. Structuring Competencies
11. Experiential Competencies
12. Integrative-therapeutic Competencies
PART IV. TA-psychotherapy for Specific Disorders
13. Depressive Disorders
14. Anxiety Disorders
15. Trauma Disorders
16. Cluster-A Personality Disorders (paranoid, schizotypical, schizoid)
17. Cluster-B Personality Disorders (narcissistic, antisocial, borderline, histrionic)
18. Cluster-C Personality Disorders (obsessive-compulsive, dependent, avoidant)
19. Neurodiversity
20. Behaviour problems and delinquency
21. Problematic use of alcohol or drugs
22. Physically Ill Clients
23. Eating Disorders
24. Sexual Disorders
25. Existential Concerns and Self-development
Part V. Evidence-based TA Treatment Manual
26. Overview of TA-Treatment
27. Establishing Relationship, Initial Assessment and Contract (sessions 1-2)
28. Systematic Assessment (sessions 3-7)
29. Experiential Processing in the Here-and-now (sessions 8-12)
30. Making Decisions and Changes in Daily Life (Sessions 13-16)