This introduction to EFL lexicography offers an insight into its fundamental issues and problems. It describes in detail the major changes that have occurred in the production of EFL dictionaries and should help teachers and their students to assess the description of the word stock on offer and to decide which EFL dictionary is the most adequate for their specific purposes. Lexicographers and their publishers have experimented with new ways of describing and presenting the words included in their EFL dictionaries to make them more accessible to users. This book compares these dictionaries and critically reviews the lexicographal achievements in the description and presentation of word meanings, registers, exemplification, cultural contexts and pictorial illustrations. It also examines the advantages and disadvantages of using a bilingual and a monolingual EFL dictionary.