What is the difference between a real estate broker and a real estate salesperson?

I want to be involved in real estate selling houses not apartments. What courses should I take and what is the best place to take them in NYC?

A RE Agent sells homes and works for a RE brokerage headed up by a broker. The broker owns the agency and the RE agent works for the broker. You need to begin by taking RE sales courses, then the exam, then shelling out money for your own signs, keyless lock boxes, etc. If you are good, you can move on to the brokerage end and take more classes, another exam (the brokerage exam is a lot tougher than the agent exam), buy a brokerage and proceed. Talk with local RE agencies about exams in NYC

A broker is someone who is more experienced, and carries responsibilities for salespersons.

When you get your license, you are a salesperson first. You have to work under a broker for at least 2 years, in most cases, before you could earn a broker's license (additional classroom training required).

realtor broker is usually someone with yrs of experience and owns the company---agent/salesperson is one who shows/sells --broker sells too.