This book is, in my opinion, the best, most comprehensive and best-organized language text I've ever used.
It's not for dabblers, however. To this serious student, it was like a long, long drink of cool water to a thirsty man: constantly delicious and satisfying. I can't recommend it highly enough.
Según mi maestra favorita, ¡una Mexicana! fue el mejor también, nuestro "libro favorito."