Dota 2 Wiki
Dota 2 Wiki
Tome of Knowledge
Tome of Knowledge icon.png
That which raises beast to man and man to god.
Bought From
Initial Stock
Max Stock
Restock Time
Active Enlighten
Bonus [?]
Alert allies? No
Tome of Knowledge (75)

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

Additional information[]

  • Tomes of Knowledge do not stack in the inventory. Each bought instance requires its own slot.
  • Tomes of Knowledge are fully sharable.


No Target
Grants you 700 experience plus 135 per tome consumed by your team after the first two.
Base Experience Gained: 700
Bonus Experience Gained per Previous Tome: 135
Cooldown: 0
Mana: 0
Buff modifier_item_tome_of_knowledge_consumed: Undispellable. Persists death.


  • The first two Tomes used only grant the 700XP base experience. Each subsequent Tome used by that team grants a bonus 135XP than the previous Tome.
    • This growth effect has no upper limit, so the experience bonus keeps growing bigger and bigger with each Tome of Knowledge consumed by that team.
  • Can be used even when already at max level, effectively wasting the item.


  • Because Tome is relatively cheap for the amount of experience it provides, it is generally advisable for someone on your team to buy and use it about as soon as each one becomes available.
  • Because it takes more and more experience to level up the more a hero levels, the experience bonus is technically more relevant the lower its user's level. For example, a hero that is nearly lvl 5 can use Tome to jump all the way to level 6, while a hero that is lvl 24 might receive about 1/3 of a level from the same tome.
  • It is recommended that your team allow the first tome to be consumed by someone that is not yet Lvl 6. Ideally, they then use their newly acquired ultimate ability to make a play (such as, to kill an enemy hero) for immediate pay-off.
  • What your team uses any further tomes for is more debatable. Tomes can be used to put your core heroes even further ahead, or they can be used to help your lower-leveled heroes catch up. In general, they should be used to help your team achieve key hero levels, namely 6/12/18 (for ultimates) and 10/15/20/25 (for talents). Keep in mind that some ultimate/talent upgrades are worth much more than others.


Recent Changes[]

  • Reduced gold cost from 150 Gold to 75 Gold.
  • The initial 600 replenish time now provides 2 Tome of Knowledge icon.png Tome of Knowledge at once. [?]
  • [U] No longer stacks with itself in the inventory. [?]
  • Enlighten
    • Increased cooldown from 0 to 300.
    • [U] Bonus experience gained per previous tome now starts with the third used tome, instead of the second. [?]