There's no way to get it anymore. RT //kytqcool: //aiww aunt Ai, where on the mainland can one buy your "Black, White & Gray Cover Books"？
如何也买不到呢 RT @kytqcool: @aiww 艾婶，在国内如何可以买到您的《黑皮书灰皮书白皮书》呢？
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The “Black, White & Gray Cover Books” are a series of books that Mr. Ai published after returning to China in the early 90s about Chinese avant-garde art. The books have since acheived cult status. For more, see this wiki entry.
