A book to remember? (5)

I believe the answer is:

diary

I'm a little stuck... Click here to teach me more about this clue!

'a book' is the definition.
(I know that diary is a type of Journal)

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for diary that I've seen before include "Pepys' daily record" , "Personal journal" , "Personal record book" , "personal account" , "Daily written record of experiences" .)

I've seen this clue in The Globe and Mail.

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