This book presents selected articles from the 3rd International Conference on Nanomaterials and Advanced Composites (NAC 2022) held at Tokushima University in Japan. This event brought together leading researchers and professionals from academia and industry to present their latest findings and served as a platform for the exchange of ideas aiming for further collaborations. Participants from over six countries shared their most up-to-date knowledge in their respective fields covering nanotechnology, nanomaterials, and advanced composites. Even though this conference had both on-site and remotely connected attendees, the main purpose to promote the networking among academics, engineers, and students was fully achieved. This book is part of the effort to disseminate the knowledge gathered during this meeting. The collection of articles covers topics on advanced composites, nanomaterials, ecological materials, energy, microfluidics, crystal growth, and photocatalysis. This representative account of the conference is intended to provide new and useful insights for prospective studies in materials science and engineering.