There are two things about waxing that must be known...
1. What type of wax?
2. Where you need to apply it?

No.1 There are two main types of wax that are available, one is warm/cooler wax which is used for warmer water conditions such as northen Australia. The other is cold wax which is used for colder water conditions such as southern Australia. The choice comes down to what kind of conditions you live in.

No.2 Wax should be placed on the top of your board for your stable hand grip, on the edges for your
trimming hand grip and in the center so you dont keep sliding off. (refer to pic below)