Rating: 

Steven Feuerstein's Advanced Oracle PL/SQL Programming with Packages book is a complete waste of time for anybody trying to learn how to write PL/SQL packages. If you want an at length tutorial on how to use some of Steven's own packages go ahead. However, if you are interested in developing your own packages, put your well earned money elsewhere. In short, this book is more of an advertisement for Steven's PL/Vision package than anything.