Kinda yes and no on this. The journal entry capturing the transaction will be for the transaction of Alice buying the book from Bob. The debits and credits will

Kinda yes and no on this. The journal entry capturing the transaction will be for the transaction of Alice buying the book from Bob. The debits and credits will be tied to that JE. Somebody is keeping book and the accounts are the accounts of that somebody. A fictional bookstore will have all the info, but Alice's and Bob's bank might not.