The aim of this workbook is to have students understand do exercises on structures that require the use of prepositions in modern Italian. It is intended for any student of Italian, with at least one semester of formal instruction in this language. This second edition includes a completely reworked series of exercises, an extensive description, in English, of the use of Italian prepositions, and a software package (with a CALIS interface for the PC) that not only confirms correct answers, but also gives detailed feedback to unacceptable answers. The content of the workbook includes the following topics: prepositions governed by verbs,nouns, and adjectives; complements (of place, time, manner, etc.); a section contrasting the use of prepositions in Italian and English. Each topic is developed in a series of exercises from the simplest to the most complex. The workbook is self-contained and easily be used in conjunction with other course materials, over two or three semesters.