Written by prominent and international researchers directly involved in the area of polymeric vectors for gene delivery, this is the first book to specifically address polymeric gene delivery systems. The book is divided into five sections that deal with challenges and opportunities in gene delivery and the efficient delivery of genes into somatic cells using polymeric vectors. The authors discuss using biodegradable polymers, condensing and non-condensing polymeric systems, microspheres and nanospheres, and designing specialized delivery systems based on targeting strategies. This book is an up-to-date guide for researchers in the field and those interested in entering this dynamic field.