This much-anticipated text and exercise book set is an absolute must for students and teachers seeking an in-depth and up-to-date perspective on contemporary Chinese business communications. Designed for students in their third or fourth year of a Chinese language curriculum at the undergraduate or graduate level, Open for Business combines language learning with an introduction to trends, practices, and problems in today's business environment. Upon satisfactory completion of this one-year course, students will be able to read Chinese-language newspapers, magazines, and other business-related documents as well as make business presentations or conduct business negotiations in Chinese. Traditional and Simplified; note that Vol. 1's exercise section is in Simplified only. B/w photos throughout.
It's way outdated and needs to be supplemented with updated material in order to be beneficial in the slightest.
As for the level of difficulty linguistically speaking, it is a good place for 2nd-year University students to start. I used it as a 4th-year and was not challenged, to say the least.