IBM manuals written less formally, by the ITSO, detailing a project they performed, including sample source code. More recently, redbooks have appeared that rival the text books you would find in a computer bookstore.
Technical support bulletins, known as Redbooks, are produced by IBM's International Technical Support Organization (ITSO). They cover a broad range of topics and offer customers real-life solutions to the everyday problems of computer use. Roman numerals: The characters I, V, X, L, C, D, and M having the value of 1, 5, 10, 50, 100, 500, and 1000, respectively. Lesser numbers in prefix position indicate subtraction. For example MCMLXIV is 1964 in decimal, because CM is 900, LX is 60, and IV is 4. Contrast with Arabic numerals, Chinese numerals, and Hindi numerals.
a technical manual that provides positioning and guidance, installation and implementation experiences, typical solution scenarios, and step-by-step "how-to" scenarios