This book covers a number of engineered nanotheranostics platforms and nanomedicines applications of FDA-approved medicines for early-stage diagnosis and treatment of cancer. The book focuses on (i) the basic design and bioengineering of safe medicines, (ii) physicochemical understanding of surface engineered medicines and their characteristics, (iii) various examples for site-specific bioimaging and multimode therapies, (iv) stimuli-responsive approaches for targeted drug delivery applications, (v) targeted therapeutics approaches for cancer cells or solid tumor ablations, (vi) targeted mechanisms of administrative biomedicines, (vii) impact of surface modification or engineering of biomedicines for site-selective tumor binding ability, and (vii) requirements for clinical trials and FDA approval. The content of this book appeal to readers who are interested in recent developments of FDA-approved cost-effective rapid cancer imaging and therapeutic platforms.