English book containing good summary (7)

I believe the answer is:

epitome

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'summary' is the definition.
(epitome is a kind of summary)

I cannot understand how the rest of the clue works.

(Other definitions for epitome that I've seen before include "Ideal example" , "Paradigm" , "Digest" , "Exemplar - embodiment" , "Perfect example of a quality" .)

I've seen this clue in The Telegraph.

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