The best poker books for beginners teach the rules of Hold'em first, then the habits that win money: patient starting hands, table position and pot odds. A newcomer needs a book that explains each hand step by step rather than a solver chart written for professionals, and the right second book depends on whether you play tournaments or a weekly cash game.
Texas Hold'em for Dummies is the book to buy if you are learning from zero, because it covers rules, betting and online play in plain language. Anyone already comfortable with the rules who wants to go deep in no-limit tournaments should go straight to Harrington on Hold'em instead.
Learning poker from books happens in stages: the rules and table manners, then a strategy for the format you actually play, then side skills such as odds, reading opponents and handling losses. Tournament players and home-game regulars need slightly different books, and each strategy title below says clearly which format it teaches.