Computer Organization Design and Architecture Fourth Edition book, open on a desk, wooden table, modern office, fluorescent lighting, 3/4 composition, shallow depth of field, blurred background, focus on the book, CPU diagrams, circuit boards, microprocessors, buses, and memory hierarchy illustrations inside, colorful wires, metal casing, keyboard, mouse, glasses, male engineer, 30s, white shirt, formal attire, sitting, thinking, reading, learning.