Book for a picture show (5)

I believe the answer is:

album

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

'book' is the definition.
(album is a kind of book)

I cannot understand how the rest of the clue works.

(Other definitions for album that I've seen before include "Book for stamps/photos" , "series of tracks" , "Record with multiple tracks" , "A music record or a book of photos" , "Book of snaps" .)

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

Want a hint initially instead of a full solution? Install my app