Professional Blackjack explains card counting and other ways to beat blackjack, and has strategies for various rule variations. It contains complete strategy tables for the high-low and halves counting systems. There are lots of tables. It's a big book because it contains the contents of three physical Professional Blackjack, Blackjack Secrets, and Basic Blackjack.
John Ferguson, known by his pen name, Stanford Wong, is a gambling author best known for his book Professional Blackjack, first published in 1975. Wong's computer program "Blackjack Analyzer", initially created for personal use, was one of the first pieces of commercially available blackjack odds analyzing software. Wong has appeared on TV multiple times as a blackjack tournament contestant or as a gambling expert. He owns a publishing house, Pi Yee Press, which has published books by other gambling authors including King Yao.
Although dated, this is a solid reference that every serious blackjack player should have in his library. Contains complete sets of index numbers for the popular Hi-Lo counting system.