Revere
Playiang Blackjack as a Business is a classic which belongs in the library of anyone serious about blackjack and advantage play.
However, it was published well over 30 years ago, and is seriously dated. The games of Revere's era (deeply dealt single deck) no longer exist.
The edges he claims for his counts are indeed exaggerated, even for the games of his era. In addition, his bankroll requirements are way low.
The full color basic strategy charts are as good as ever and still accurate.
Enjoy the book for what it is, a piece of blackjack history. Then update your library with a copy of Professional Blackjack, by Stanford Wong.