This book introduces the fundamentals of assembly language programming through the use of the MASM assembler, and it serves as a foundational tool for learning the concepts of ALP. This book has been planned and compiled to provide programming abilities to beginners, namely in electronics, computer science, and electrical discipline. It seems that most microprocessor textbooks are lacking something - either they don't cover programming principles adequately, or their approach to the x86 series of microprocessors makes it seem difficult to grasp and handle. Assembly language programming is hostile and difficult to master. Our goal in writing this book was to eliminate these flaws by explaining subjects step-by-step, keeping ideas simple, explanations clear, and presentations simple. The book 'Hands-On Programming with MASM Assembler: For Intel 8086 Microprocessor" looks at assembly language programming from a high-level language perspective. To efficiently implement high-level language constructs, it concentrates on assembly language features. Each chapter examines the effect that a specific set of assembly language instructions has on the program's overall performance. This book is designed to introduce assembly language programming with the MASM assembler on Intel 8086-based CPUs, as implemented in this book.