What is ESP?It also contrasts with Business English, although there is considerable overlap between the two branches.A lawyer and a marketing executive might both benefit from attending the same Business English course, focusing on the generic skills they both need at work (such as writing an email or participating in a meeting), but they might get more from attending an ESP course in legal or marketing English respectively as this will focus more precisely on their needs.This broad definition can be taken to include business skills, such as English for Job-hunting or Presentations, bur many ESP teachers see their field as distinct from mainstream Business English.