If you have a copy of the classic Photoshop book ‘Photoshop Channel Chops‘ (published back in 1998), you might want to consider selling it. The current on-line prices vary from $150 to $650! And to think that I just saw Bert Monroy (one of the authors) and didn’t think to bring my copy to get signed, which might have pushed the price even higher. Go ahead and check out ebay, amazon, or your favorite on-line used product site.