This book compiles and details cutting-edge research in graphene nanostructures and provides circuit designers with recent progress on graphene transistors for nanoscale circuits. The transistors in integrated circuits are approaching atomic scales. This will soon result in the creation of a growing knowledge gap between the underlying technology and state-of-the-art electronic device modeling and simulations. To bridge this gap, the book provides the computational analysis and mathematical circuit model of a novel transistor with an alternative graphene channel. While most of the books focus on synthesis, fabrication, and characterization of graphene, this book shines a light on graphene models, its circuit simulations, and photonics applications. The computational analysis plays a vital role to optimize the transistor structure, and the device models allow designers to input custom design parameters for evaluating the performance of graphene circuits as a promising VLSI technology. The primary aim of the book is to inspire and to educate fellow circuit designers and students into the field of emerging low-power and high-performance circuit design based on graphene.