This work is the result of a recently held International Epilepsy Colloquium on the mesial temporal lobe epilepsies (MTLE) which covered all aspects of this specific group of syndromes (or constellations), from animal model to treatment strategies. Written by international experts from different fields, it aims to provide professionals from neuroscientists to clinical neurologists, neurosurgeons and neuropaedia-tricians dealing with mesial temporal lobe epilepsy, with a concise overview on the current body of knowledge and on emerging concepts and findings.