Just out of curiosity, I browsed the physics section on Amazon.com to see which academic text book was the best selling, believing it to be the Feynman lectures on physics, and I came across this:
#1 in Books > Engineering & Transportation > Engineering > Electrical & Electronics > Circuits > Design #6 in Books > Engineering & Transportation > Engineering > Electrical & Electronics > Electronics #12 in Books > Textbooks > Science & Mathematics > Physics
So there you have it, Paul Horowitz and Winfield Hill are probably more recognized than Mr Feynman and his lectures on physics!
Larry Harson