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by harshreality 1613 days ago
Get it from a pirate site (l--g--, zlib----), survey the sections, and skim a few pages. That'll let you know if it's 90% filler or 90% useful content for you.

One person's useful content is another person's filler. It depends on how familiar or agreeable you already are with the material or advice in the book, and how difficult a read you're willing to tolerate.