The Printed Circuit Assembler’s Guide to... Design for Test presents a practical roadmap for integrating DFT into PCB and CCA development, emphasizing early test strategy—during schematic capture and layout—rather than adding it after design completion. It explains how the complexity of modern electronics, shrinking geometries, and high-density packaging demand smarter access strategies, including boundary scan, BIST, flying probe, ICT, and functional testing. Central to the book is the PCOLA-SOQ framework, which provides a structured, measurable method for evaluating inspection and test coverage at both component and pin levels. The author highlights the cultural shift required to make DFT a shared responsibility across engineering, manufacturing, quality, and leadership teams. By combining layered test strategies with measurable coverage metrics, organizations can improve first-pass yield, reduce rework and field failures, strengthen compliance, and accelerate time to market while building long-term product reliability and confidence.