This book is aimed at new sewers, and really I would suggest teens, however a lot of the information contained with in translates to any sewer at any age.
It starts off with the basics: hand sewing and machine sewing, needles, buttons, mending etc. All the useful stuff that everyone should know whether a sewer or not!!
Then it goes on to spend a lot of time talking about changing current clothes using these techniques to make them more fashionable today, as well as a little section on sewing areas.
Then basically the rest of the book is around projects for you to have a go at.
If you're creative then the projects will be of no use to you, but the general sewing information at the begining of the book is useful for everyone.