Avoidance is a key characteristic LADIES ACCESSORIES SCARVES of adaptive and maladaptive fear.Here, we review past andcontemporary theories of avoidance learning.Based on the theories, experimental findings and clinical observations reviewed, we distil key principles of how adaptive and maladaptive avoidance behavior is acquired and maintained.We highlight clinical implications of avoidance learning theories and describe intervention strategies TROUSERS SPLIT SUIT AUDEN that could reduce maladaptive avoidance and prevent its return.We end with a brief overview of recent developments and avenues for further research.