This would be like a cross between a dust-jacket and a hot water bottle that would make the book warm while you held it, for those cold nights when you're tucked up in bed with a good book. It could be heated either using gel-pack inserts that are popped in the microwave beforehand for half a minute, or plugged in to the mains like an electric blanket. The outside would be soft or furry without being cumbersome to hold, and there would be a thin layer of insulation (silver foil etc) on the inside of the bookwarmer to prevent possible damage to the glue or bindings of the book.-- Jim, Sep 06 2001 Not *too* warm, I hope. http://www.randomho...tgs/fahrenheit.html [angel, Sep 06 2001] My computer's warmer than a book anyday.. Just not as riveting, necessarily.-- yamahito, Sep 05 2002 Very nice, I'd like one of these for the sheer novelty value. You could probably market them too.-- madradish, Sep 06 2002 Very nice. Can I have one, please.-- dbmag9, Apr 10 2006 random, halfbakery