This contributed volume covers all fundamental principles for researchers and professionals interested in the field of Biomaterials and Tissue Engineering, an interdisciplinary field of research with contributions from biomedical scientists, engineers, and physicians. With a strong focus on biomaterials and scaffolds, the book also covers testing and evaluation pathways for in vitro and in vivo studies. This book also presents a broad range of topics including fundamentals of 3D printing and bio printing, followed by contemporary technology used in tissue engineering applications as well as currently available biomaterials suitable for tissue repair and regeneration. This volume provides information on: (i) why humans need biomaterials, especially in medical applications, (ii) different types of tissue engineering strategies, and (iii) modeling, characterization, and evaluation of outputs of those strategies. This book is a reference material in the field of tissue engineering, and it is very useful for bachelor, M.Sc., and Ph.D. students, researchers, academics, medical, industry, and healthcare professionals from diverse backgrounds.