In Norway there are ski schools for complete novices as well as for the more advanced skier. Qualified instructors will help you to master the skills you need to become a proficient and safe skier.
Group lessons are ideal if you want to meet people and have someone around for moral support. They tend to be cheaper as well.
Private lessons on the other hand are more flexible and better focused to individual needs. And if there are three or four of you, they do not work out that more expensive than group lessons.