Quote by genericusrnme
How about some Spivak?
Also, get some linear algebra done!
Linear Algebra is an incredibly pretty subject, makes calculus look like a contraption sellotaped together imo :3

If he is asking for a "studentfriendly" book I don't think Spivak is a good choice, it's a difficult book for a selflearner.
For Linear Algebra he could use Larson's. I very much agree in that it is a pretty subject. The best of Linear Algebra is that you don't need any basis at all for learning it besides the very basic arithmetics