This book offers the course of cancer development, beginning from normal cells to cancerous form and the genomic instability, also cancer treatment as well as its prevention in the form of the invention of a vaccine is covered. Certain diseases are also elucidated, like leukaemia, glioma, breast cancer, and cervical cancer. Comprehending cancer through its molecular mechanism is required to decrease the cancer incidence. Complications like metastasis and drug resistance and the procedure of treating cancer more efficiently are vividly illuminated in this book along with some research results that could be employed to treat the cancer patients in the not too distant future. This book includes sections namely, non coding RNA & micro RNA in tumorigenesis and oncogenes for transcription factors.