The book "Energy in the Modern World" gives an easy-to-understand overview of renewable energy technologies like wind, solar, and bioenergy. It's meant for engineering students and covers how these technologies work, how projects are developed, and how they're operated. The book includes examples to help students understand how theory applies to real-world situations. There are also tutorial chapters to support students from different backgrounds. The book has over 150 problems at the end of each chapter, with answers in the book and full solutions online for instructors.