NURBS: from Projective Geometry to Practical Use - This is more useful for learning the mathematical foundations of NURBS than for programmers looking for a reference book on practical algorithms or applications of NURBS.
Schaum's Outline of Theory and Problems of Tensor Calculus - I'm finding this hard going, it starts off with as review of linear algebra, matrix notation, etc. It redefines a lot of conventions which are hard to relearn, such as superscrips instead of subscripts to identify elements, and a summation convention, then it goes into coordinate transformations. I cant find any definition of what a tensor is. I think this book is aimed at people who already have some knowledge of the subject.