It's a text in which popular idioms and fixed expressions related to negotiations are introduced in clear contexts so that it's easier to understand and remember them. The text is accompanied by speaking activities and gap-fill/matching exercises for better retention of the new lexis. I've created many texts like this and my students claim it's their favorite type of study material. I can offer a pack of 10 texts focusing on different areas of business English.

If you have the upper hand in a negotiation it’s easier to come to terms on the conditions that suit you because your position is stronger than the other party. However, it probably isn’t a good idea to overuse your position and drive a hard bargain all the time. If you never agree to what other party wants, it’s impossible to reach any type of agreement. Sometimes you need to meet your counterpart halfway: do something what they want and, in return, you will get things that are important for you.