I find "The Well-Grounded Rubyist" by David Black to be an excellent intro to Ruby. My only comparison is with the Pickaxe, to which it is superior (clearer, sc

I find "The Well-Grounded Rubyist" by David Black to be an excellent intro to Ruby. My only comparison is with the Pickaxe, to which it is superior (clearer, scales to different experience levels, not overloaded as a reference).