This atlas systematically reviews sensory conduction studies of the median nerve, from pilot human studies in peripheral nerve conduction during the 1950s through to the most recent scientific evidence. Descriptions are provided of a wealth of sensory nerve conduction techniques that were reproduced in the laboratory, including both the originally proposed methods and variants. The methods are organized according to practical criteria for ease of reference. Attention is focused especially on those techniques which have shown higher sensitivity and specificity in the diagnosis of compressive mononeuropathies like carpal tunnel syndrome (CTS), and on the most widely accepted guidelines, recommendations, quality measures, and electrodiagnostic classifications. A detailed,