Ahed Al-Khatib's 'Principles of Energy Conversion' provides a foundational exploration into how energy transforms from one form to another. Published by Dar Al-Shorouk, this 2020 work is essential for students and professionals in engineering and physics. It systematically covers thermodynamic laws, electrical systems, and mechanical energy, offering clear explanations and practical examples to build a strong understanding of the core concepts that power our modern world and drive technological innovation.