This is a revised edition of the students' book for "The Nelson Proficiency Course", which was highly commended in the 1990 Duke of Edinburgh English Language Competition. The course places particular emphasis on vocabulary development, grammar and reading. The course features: new reading material; grammar approached from a deductive viewpoint; a variety of writing tasks, with guidance on content, organization, style, exam technique and summary writing; a language awareness section; and exercises in the format of Proficiency papers one and three. A teacher's book and two cassettes are also available.