Academic Writing: A Handbook for International Students, 2nd Ed. by
Ideal for overseas students studying at English-medium colleges and universities, this practical writing course enables international students to meet the required standard of writing and use an appropriate style for essays, exams and dissertations. Newly revised and updated to include extra exercises and material suggested by teachers and students, Academic Writing explains and demonstrates all the key writing skills and is ideal for use in the classroom or for independent study.
Oxford Guide to Effective Writing and Speaking, Third Edition by
"The essential guide for everyone who needs to communicate in clear and effective English, both written and spoken" . See Section D: The process of writing - which looks at what's involved in writing longer pieces, including planning and drafting, research, summaries, editing, and presentation.
Additional resources for improving your writing skills are listed on the Business English & Communication Research Guide.