Students of English realize very early on in their learning career that prepositions present a problem. They collocate with nouns, adjectives, past participles, and verbs, without rules or logic. Students simply have to learn that interested is followed by in, and good is followed by at. and go home has no preposition. This book will help students to unravel the complexity of multi-word verbs and idiomatic expressions. Students will find staged guidance in understanding the systems, and are given a variety of exercise practice in recognition and production.