NEW YORK (CNN/Money) - The widespread popularity of HBO's "The Sopranos" has inspired ancillary products from a line of mafia-inspired clothing (silk shirts are big) to a cookbook.

Anthony Schneider, author of Tony Soprano on Management, talks about what management skills could could be learned from the mobster's character on the hit cable TV show. Play video (Real or Windows Media)

Now comes the latest distillation of the wit and wisdom of America's favorite neurotic gangster. As the series prepares for its fifth-season launch in March, two new books offer management tips, wiseguy-style.