Herzlich Willkommen im Junghans-Wolle – Handarbeitsforum!

People usually keep paintings in places that are less exposed to direct sunlight. Another method is to spray varnish to create a protective layer on the painting.

You can read Needle felting for beginners: How to sculpt with wool. This book is written by Roz Dace and Judy Balchin. Good for beginners.