Hot answers tagged wizard
This is how Wizards prepare spells (PHB p. 114): You prepare the list of wizard spells that are available for you to cast. To do so, choose a number of wizard spells from your spellbook ... You can only prepare spells that are in your spellbook. You can't crib off someone else's notes! This is how you add spells to your spellbook (PHB p. 114): ...
As you quoted, each wizard's spellbook notation is unique, therefore you can't prepare spells from someone else's book. You must first copy the spell into your own book (deciphering the notation in the process), after which you can prepare it as normal.
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