What is GRE Big Book?

Many people in this forum had alluded to the GRE Big Book; what is it? What is the actual name? Is it helpful to prepare you for the GRE?

The Big Book is no longer published. It is a great resource - if you can find it!

what is considered a good score on the gre big book tests(verbal). I mean how many correct answers in 38…?

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