In this chapter we will examine the psychological treatments that have been found to be helpful for people with Hoarding Disorder. The main approach used is Cognitive Behaviour Therapy (CBT). This may be with an individual or in a group setting. Although, as with much of the research into Hoarding Disorder, the number of studies of high quality are limited, we have good evidence that CBT does work and can have life-changing impacts both on the hoarding and also the depressive symptoms which often accompany Hoarding Disorder. One of the major issues, however, can be the reluctance of people with Hoarding disorder to enter into treatment programmes and then to stick with the programme. There may be many reasons for this reluctance. One recent development which may be hopeful for the future has been using an approach known as Compassion Focussed Therapy in addition to the standard CBT.