Diane Collinson & Gillian Kirkup 
Plain English [PDF ebook] 

Plain English meets the needs of all students who wish to improve their writing skills. The book opens with an introductory quiz, which gives a broad idea of the subject matter covered and helps readers to identify those sections which will be of most use. The quiz is followed by sections on punctuation, spelling, grammar, style, references and bibliographies. Each section deals step by step with basic difficulties and provides exercises to help test the readers’ understanding. Answers are provided for all the exercises. Plain English is user-friendly and may either by read from beginning to end, or simply dipped into for selected sections.