This document provides an overview of Leonard Talmy's work in cognitive linguistics. It summarizes some of his major publications and theories. Specifically, it discusses how Talmy viewed language as a cognitive system that shares features with other cognitive systems like perception and attention, but also has unique properties. It outlines Talmy's theories on topics like the grammatical and lexical subsystems of language; how language structures space and time, including his theory of "fictive motion"; the role of attention and "figure-ground" relations; and his theory of "Force Dynamics" in language.