ONE TO ONE is a handbook for teachers of business and executive English. It provides teachers with an approach and highly practical ideas for the small group and one to one teaching situation.
In my view, this is the KEY text for DELTA M3 One to one. If you cut past the outdated references to technology (typewriters, Walkmans, etc.) then this book is an excellent source of inspiration. Written without overly technical jargon (which the author is against) and in a very accessible style, it's one of the most enjoyable books I've come across on my course.