Are the official books from mba.com best for GMAT?

When I took my LSAT, I found that the official books from LSAC (the board that administers LSAT) were the best.

Is it true for GMAT as well. Should I buy the books from mba.com (who administer GMAT) or should I buy Barron, Princeton, Kaplan etc.

Please give any other study material suggestion as well.

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