This workbook deals with lexical interference in Italian and English – the problem of 'false cognates,' words in one language that resemble words in another language but have different meanings. Aimed at correcting and preventing the most common errors caused by lexical interference and at expanding the student's vocabulary, it is intended for use by students with on or two years' training in Italian in high schools, universities, and community colleges. The workbook contains exercises on specific interferences, twelve recapitulation exercises, a section on interferences of lower frequency, and a set of exercises on which the student can work independently.