Experience is a great teacher, as is seeking the services of a qualified climbing guide, experienced friend or going on a winter skills course.
The next best thing is doing some reading or even better watching the BMC Winter Essentials DVD. You can view a trailer of that instructional DVD at www.thebmc.co.uk
Avalanche awareness? Try this quiz at the Glenmore Lodge website:www.glenmorelodge.org.uk/avalanche