Triple negative breast cancers (TNBC) are a biologically aggressiveform of breast cancer and constitute approximately 10-15% of all breast cancerpatients. Distant metastasis, lack of clinically targeted therapies andprognostic markers, makes the disease difficult to treat. Till now not muchwork has been carried out on this deadly disease. This book provides an overview of TNBC etiology, its treatmentstrategies and prognostic markers to identify the outcome of standard therapies.Signalling pathways namely cell proliferation, angiogenesis, invasion andmetastasis, apoptosis, autophagy and others involved in complicating thedisease have been described in the chapters to convey an understanding aboutthe disease mechanisms.