Hi Pyra - when you open the programme there is an option to explore the guidebook which is well written for the layman, and fairly comprehensive. Also if you bought a boxed set there is a fine manual within. Is there a particular thing you want to achieve with layers that you can't find in either place? If so fire away.
children paint because they don't know they can't - so what happens as we become adults? - Me
Life is very nice, but it has no shape. The object of art is actually to give it some, and to do it by every artifice possible - truer than the truth. - Jean Anouilh 1910-87