I'm doing English lessons with a Korean friend in exchange for Korean lessons for me.. We'd both like our lessons to be structured by a textbook so we stop just fooling around and actually get some learning done!

Anyway, I need suggestions for an adult "Business English" textbook. His English grammar is excellent, he studied in high school but not much at University. I'd say he's
high intermediate level. What he needs to focus on is listening, speaking, and comprehension. When speaking, it takes a long time for him to get his point across. Good Morning Pops is too hard for him.
A good conversation textbook for adults is what I need. Suggestions? Thank you!
