The book "Lexicography and Dictionary Use" provides a comprehensive introduction to research on dictionary usage as well as the structures and types of dictionaries. It addresses both printed and electronic dictionaries and takes into account the latest developments in lexicography, particularly in the field of internet lexicography. The revised edition includes an additional chapter on electronic dictionary portals and is aimed at students and educators in German, English, and French philology. The goal of the book is to promote a conscious and critical approach to dictionaries and to encourage readers to develop an independent understanding.