Andrews/Shelton/Schmelz/Jaqua Jr.'s "CompTIA A+ Guide to IT Technical Support," 12th Edition, brings clarity to IT fundamentals and skills needed for support roles. Its visual, step-by-step approach uses CompTIA A+ Exam objectives to train learners to diagnose, install, maintain, troubleshoot and network computer hardware and software to sharpen communication skills and deliver clear, confident, customer-first support. Core and advanced topics are blended to emphasize the application of skills across Windows 10/11, macOS, Linux, mobile devices, cloud, virtualization, scripting, security, Active Directory and AI. Lab manuals, interactive simulations, live virtual machine labs and auto-graded MindTap activities let students test ideas, solve problems and sharpen skills as they build competence toward success on the 220 1201/1202 exams and excel as IT technicians or administrators.