Waxing
Waxing may appear confusing but with a little practice and experience you will find it is not as complicated as it looks. For cross country skiing there are 2 types of waxing: glide waxing and kick waxing. Glide waxing is done in order to allow the ski to glide more easily across the snow, both classic (but not in the kick zone) and skate skis should be glide waxed. Kick wax is a sticky wax which allows the ski to grip the snow, it is applied in the kick zone (generally starting at the heel and stretching forwards 50-60cm) and is only used on classic skis.
Glide Waxing
Clean base by brushing with brass brush
Apply liquid wax to the glide zone
Let wax dry for at least 20 minutes
The longer the wax dries the longer it will last
Brush ski with nylon brush
Base of ski should look shiny or polished
Kick Waxing (Classic Skis Only)
Roughen kick zone with sandpaper
Apply binder wax across kick zone
Iron in binder with an iron used only for kick wax
When wax is cool, cork binder smooth
Rub a thin layer of the wax of the day, cork in smooth
Add additional layers as needed corking between each one
Below is Toko's wax manual with their advice on waxing.