Accustomed to structured programming languages such as Pascal, Fortran and Visual Basic I found quite difficult to grasp the "more natural" approach of Applescript. This book turned out to be exhaustive, uptodate (Leopard), and accurate. it is really the book you should *** study *** If you need to go deep into Applescript. Full of useful examples to put theory into practice to acquire a good command of the language. Really the only manual you need.