English Basics: A Companion to Grammar and Writing is an accessible reference and practice book that can be used both in the classroom and at home. It provides help with the 'mechanics' of English language - grammar, punctuation and spelling - and is ideal for students, teachers and anyone who needs to use English with a high degree of competence.Each unit includes a reference section and tasks which you can use to test your knowledge and assess your strengths and weaknesses. A Knowledge Check section provides opportunities for extension, revision and consolidation of particular points.