I bought this product a few months ago and have used it on a couple of occasions - firstly I tried the stencils just on some paper to see what they were like and then more recently I decided to have a go on some t-shirts. There is a good section on how to use them at the start of the book.
I am completely new to stencilling and I found these just really easy to use, and they look great whatever you paint them on.
The stencils themselves are wipe clean, I found that the paint came off pretty easily and they are easy to re-use, so for the price of the book, the value for money is excellent. I'm a very happy customer!