Highly experienced researchers describe in step-by-step detail methods that have proven most useful in delivering genes to mammalian cells. Volume 2: Viral Gene Transfer Techniques, details procedures for delivering genes to cells in vitro and in vivo, including the use of lentiviral vectors. An accompanying volume, Volume 1: Nonviral Gene Transfer Techniques focuses on gene delivery by a variety of chemical and physical methods, including ultrasound, biolistics, peptides, PNA clamps, liposomes, microinjection, electroporation, particle bombardment, dendrimers, and hydrodynamics.