BOULDER , Colo . , May 11 / PRNewswire / -- The Chasen Group , a company that provides comprehensive and cost-effective ergonomic interventions to prevent workplace injuries , increase employee comfort , and improve productivity , today announced that John Wiley and Sons , the foremost publisher of scientific and medical journals has published a book titled " Safety Manager 's Guide to Office Ergonomics , " written by Craig Chasen , president .