The Millennium Problems: The Seven Greatest Unsolved Mathematical Pu – VERY GOOD

A nice touch about this unbranded textbook is the inclusion of practice tests.

Introduction to Mathematical Thinking – Paperback By Devlin, Keith – GOOD

A nice touch about this unbranded textbook is the compact size for easy storage.

The Numbers Behind NUMB3RS: Solving Crime with Mathematics – Paperback – GOOD

If you want a textbook that just delivers facts, this unbranded one works well.

The Language of Mathematics: Making the Invisible Visible – Paperback – GOOD

You will find that this unbranded textbook is easy to pack in a backpack.