This book is helpful, I used it for Maths 108 at UoA. It contains many useful theories, as well as examples and Q&A's to test yourself with (see 3rd photo). This book is in great condition, and has no wear. Also, it's a hardcover :)
Waitakere, New Zealand
Preferred times: From 1st - 10th November I'm busy with exams, but 11th onwards I'm much more free.