One book I'm currently plowing through is Stephen Wolfram's massive (1192 pages and 5.5 lbs!) tome:
A New Kind of Science.

I've heard so much about this guy that I couldn't wait to see what he had to say about his own work - as opposed to what others have said about it.
Occasionally interesting, often
repetitious, and chock full of the author's inflated notions of self-importance. Much like the
Wolfram|Alpha engine itself, there's a good chance there's far less here than meets the eye.
I also have an occasional problem with his making personal claims to "discoveries" and insights that have obviously been made by others long before him. Either this guy has an ego the size of a truck, or he is painfully oblivious to all the mathematical research going on around him.
Since I'm reading it a few pages at a time (with just before bedtime tea) I've only made it about a third of the way through so far. I'll probably finish it since I keep thinking there's something I'm missing, with hopes it doesn't turn out to be mostly smoke and snake oil.
On a positive note, it is well written and nicely illustrated.

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Note: I got my copy at our local library book sale for four bucks. If I had plunked down the $45 cover price I'd be pretty pissed with myself right now.
