About the Book : Topic by Topic Dictionary is designed for active learningbyyoung learners in order to increase their vocabulary faster. Itisintended for students aged 6-15, depending on whether theystudyEnglish as a first, second or foreign language. It is arrangedin101 units under 20 major themes. Key Features : about 4000 headwords and Phrases about 8000 example sentences to illustrate how the headwords are used 101 short reading passages in variety of style and genres that show the headword in context more than 400 lively illustrations with clear captions lots of language panels on grammar and related vocabulary index of all the headwords