After a general overview of the objectives of therapy, this chapter describes the different types of learning and their specificities. General methods for generating new behaviors or, conversely, eliminating behaviors are detailed, along with communication guidelines and the use of appropriate tools. Therapies for specific disorders are then addressed axis by axis, each time presenting general principles, environmental modifications, and the most suitable behavioral adjustments. It is worth noting that for cats, a nonsocial species, the environmental modification aspect plays a much larger role than for dogs. The objectives differ. Cats are not expected to be walked in urban areas, nor are they required to heel or respond reliably to recall commands. These differing needs lead to simpler and often more easily implemented behavioral therapies. This is likely one of the reasons why treating cats for behavioral disorders is generally easier than it is for dogs.