Regeneration is the process of renewal,restoration and growth that makes genomes,cells,organisms and ecosystems resilient to natural fluctuations or events that cause disturbance or damage.Every species,from bacteria to humans is capable of regeneration.Regeneration can either be complete,where new tissue is the same as the lost tissue, or incomplete,where after the formation of necrotic tissue,fibrosis takes place.It is mediated by the molecular processes of DNA synthesis.Through the course of this book,Dr.Arun Srinivasan and I,Dr.Ayush Razdan Singh,take you through the process of regeneration and all that it encompasses.