The Main Types of Therapy, Explained in Plain Language

Why There Are So Many Types of Therapy

If you've ever searched for a therapist and found yourself swimming in abbreviations — CBT, DBT, EMDR, ACT — you're not alone. The wide variety of therapy approaches can feel overwhelming before you've even made a first appointment.

The reason so many types exist is that people are different, and their concerns vary. A single method developed decades ago couldn't adequately address the full range of human experience. Researchers, clinicians, and theorists have built on each other's work to create approaches tailored to specific challenges — from anxiety and trauma to relationship difficulties and existential questions.

This guide introduces the most widely used therapy types in plain language, so you have a clearer sense of what each involves. For a broader view of how these fit together, see The Landscape of Modern Psychotherapy.

The Major Therapy Approaches at a Glance

Cognitive Behavioural Therapy (CBT)

CBT is one of the most researched and widely practiced approaches available. It focuses on the connection between thoughts, feelings, and behaviours — the idea being that changing unhelpful thinking patterns can shift how you feel and act. Sessions are typically structured and goal-focused, often lasting 8–20 weeks. CBT is commonly used for anxiety disorders, depression, OCD, and phobias. Learn what actually happens in a CBT session.

Dialectical Behaviour Therapy (DBT)

DBT was originally developed for people with borderline personality disorder but is now used more broadly. It combines cognitive-behavioural techniques with mindfulness skills, and focuses heavily on emotional regulation, distress tolerance, and interpersonal effectiveness. It often involves individual therapy alongside group skills training.

Psychodynamic Therapy

Rooted in psychoanalytic ideas, psychodynamic therapy explores how unconscious processes, early experiences, and relationship patterns shape current emotions and behaviour. It tends to be less structured and more open-ended than CBT, allowing themes to emerge organically. It is often better suited to long-standing patterns of difficulty rather than a single, time-limited concern. Learn how session length shapes treatment.

Humanistic and Person-Centred Therapy

These approaches prioritise the therapeutic relationship and the client's own capacity for growth. Person-centred therapy, developed by Carl Rogers, emphasises empathy, unconditional positive regard, and authenticity from the therapist. The goal is to create conditions where the client feels safe enough to explore and trust their own experience.

Acceptance and Commitment Therapy (ACT)

ACT encourages people to accept difficult thoughts and feelings rather than fighting them, while committing to actions aligned with their values. It draws on mindfulness and aims to increase psychological flexibility — the ability to stay present and act meaningfully even when life is hard.

EMDR (Eye Movement Desensitisation and Reprocessing)

EMDR is a structured therapy used primarily for trauma and PTSD. It involves recalling distressing memories while engaging in bilateral sensory input — typically guided eye movements. Research supports its effectiveness for trauma, and it is recommended by bodies including the WHO and the American Psychological Association for PTSD treatment.

How to Think About These Differences

These approaches are not mutually exclusive. Many therapists are trained in more than one modality and adapt their style to the individual. A therapist might use CBT techniques within a broadly humanistic relationship, or draw on psychodynamic ideas while also teaching mindfulness skills.

What matters most — and what research consistently supports — is the quality of the relationship between therapist and client, sometimes called the therapeutic alliance. The specific method is one piece of the picture, not the whole story.

Explore what sets each approach apart if you'd like a deeper comparison. And if therapy terminology still feels unfamiliar, this plain-English glossary of therapy terms can help you feel more prepared before your first session. You may also want to understand the different types of mental health professionals before deciding who to see.

This article is for general informational purposes only and is not a substitute for professional mental health advice, diagnosis, or treatment. If you are experiencing a mental health concern, please consult a qualified healthcare professional.