Country books at various sales (7)

I believe the answer is:

atlases

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

'country books' is the definition.
'atlases' can be an answer for 'books' (I've seen this before). I am not certain of the 'country' bit.

'at various sales' is the wordplay.
'various' is an anagram indicator.
'sales' anagrammed gives 'lases'.
'at'+'lases'='ATLASES'

Can you help me to learn more?

(Other definitions for atlases that I've seen before include "Sea salt (anag.)" , "Book of maps" , "Cartographical works" , "navigation aids" , "Sea-salt (anag)" .)

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

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