There would be times when either would be appropriate.Originally Posted by Evgeniya
We use the present perfect in these constructions, because the person is presumably not finished yet.
That is the best book I have read (to date).
Once a person has died, he is presumably finished reading or writing anything. The simple past will usually work. The past perfect would be used to set the action back before another action in the past -- including the author's death.
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