An employment agreement is the only moment in a working relationship when the employee has leverage, and most people spend it asking about the salary. This article explains what an employment agreement actually decides — the definition of cause, what counts as good reason, what happens to equity on the way out, and which restrictions follow a person to the next job. It walks through the compensation architecture from base and bonus through options, restricted stock, and RSUs, and explains the tax rules that quietly determine whether an award is worth what it appears to be worth. It covers severance, change of control, clawbacks, and the negotiation points that are actually available at each level of seniority. Readers finish able to read an offer letter or an executive agreement and see, clause by clause, what has been given and what has been kept.