Tome of Knowledge

Tome of Knowledge is an item purchasable at the Main Shop, under Consumables.

Tips

 * As it is cheap and grants a fair amount of experience in exchange for those coins, it is advisable to buy it whenever available.
 * The higher the level of the hero is, the more experience is required to level up. So it can be better to use it on a low level teammate as they get higher use out of it by reaching crucial levels early.
 * Ideally, a team could choose to have this used primarily for carries to speed up their growth. On the other hand, a team could have this used for the supports who may need just a little boost to keep up with the rest of team as they purchase wards and other support items.
 * Using the Tome of Knowledge to achieve crucial levels, such as level 6/11/16 to unlock important ultimate abilities for the next teamfight.