@NatSLGearyWould you say an Arcane Trickster Rogue can copy spells into his/her spellbook as a Wizard does? yes

— Mike Mearls (@mikemearls) February 25, 2016

@NatSLGeary @mikemearls I remember @JeremyECrawford rules differently. Something like EK and AT do not have spellbook.

— Knoll (@Knoll68028721) April 6, 2016

An Arcane Trickster casts wizard spells but doesn't use a spellbook. The same is true of the Eldritch Knight. #DnD https://t.co/TCod8ECyJd

— Jeremy Crawford (@JeremyECrawford) April 7, 2016