Some employers don't help either. My wife just received an offer from a pretty well funded company (Series B >$20M) and all they would tell her about the optio

Some employers don't help either. My wife just received an offer from a pretty well funded company (Series B >$20M) and all they would tell her about the options package was number of shares and vesting schedule. When she asked to how many shares are in the company (to calculate her potential ownership %) she wasn't given an answer. When she asked for a rough estimate of the current value of those shares if vested, they basically just said "trust us, this is a good package." That experience reinforced my belief that you should assume the equity is worth $0 and not factor in the stock grant when evaluating an offer (unless you are at the company super early).