konsili

The grammar is the trap. What gets advised is the direct object, and the person advised takes al: mi konsilas al vi la libron. English does the opposite, putting the person straight after the verb, so mi konsilas vin sounds right to an English ear and is not. Where a whole action follows, either an infinitive after al vi or a ke clause with the volitive -u will do the job. The noun konsilo is a piece of advice, countable in a way English advice refuses to be, and konsilanto is an adviser, konsilantaro a council.