Co-authored by Peter Norton and John Socha, "Peter Norton's Assembly Language Book for the IBM PC" (1986) is a seminal, tutorial-style guide focusing on x86 assembly programming through the hands-on creation of a disk sector editor, Dskpatch. The book covers foundational concepts including CPU registers, DEBUG, the Microsoft Macro Assembler (MASM), and ROM BIOS, making complex low-level programming accessible to intermediate users. For further exploration, the text is available via Internet Archive . Peter Norton's Assembly Language Book for the IBM PC