I think it would be a very good idea. As I've started to play less than a week ago, it would have been quite useful for me to have some extra explanation nearby. It isn't hard to search for traits in codex, but some examples would be good, especially for people with little experience in boardgames.

Some general strategies for each mage would also be great for beginners. Even the Apprentice spell book has fewer spells, there are a lot of cards for a new player to choose from. I still have trouble opening my games; I can't decide which spells should I play first. Of course there are games online to watch, but some general tips and strategies would be better.

Thank you for all your answers.
Yes, I should watch the little ones, they like to play with fire As for me, I like animals, but the wizard seems very interesting, too. Anyway, I'll play more to get a better feeling of them.