Due the generosity of my colleagues in the math department, several boxes of mathematics books are donated to the Vasche Library every semester. Some of these books are new textbooks sent to us by the publishers, some are older editions of a current textbook, while others are just popular books about mathematics.
If the old edition at the library is close enough to the current one, you may be able to save yourself $100 on a new book. If you are not satisfied with your current textbook or just want to see the material presented in a different way, try looking through these alternatives. Below are my best guesses for which book complements which class.
Apparently gifts are given a low cataloging priority at the library, so these books may not be on the stacks yet. If there is a book you are dying to get your hands on, just let me know. I will see if I can speed up the process for you.
Alternate Textbooks
Author 
Title 
Edition 
Course Number 
A. Sia, H. Sun, R. Wilson 
The Best Test Preparation for the ELM 
ELM  
L. Hirsch & A. Goodman 
Understanding Intermediate Algebra: A Course for College Students 
4th 
0106, 0107, 0110 
A. Kaseberg 
Intermediate Algebra: A JustinTime Approach 
0106, 0107, 0110 

C. McKeague 
Intermediate Algebra: Concepts and Graphs 
3rd 
0106, 0107, 0110 
K. MartinGay 
Basic College Mathematics 
0106, 0107, 0110 

K. Smith 
The Nature of Mathematics 
8th 
1000 
K. Smith 
Trigonometry for College Students 
7th 
1080 
M. Sullivan & M. Sullivan, III 
Trigonometry: Enhanced with Graphing Utilities 
3rd 
1080 
R. Barnett, M. Ziegler, K. Byleen 
Analytic Trigonometry with Applications 
7th 
1080 
E. Swokowski & J. Cole 
Precalculus: Functions and Graphs 
9th 
1100 
J. Faires & J. DeFranza 
Precalculus 
2nd 
1100 
B. Armstrong & D. Davis 
Brief Calculus: The Study of Rates of Change 
1410 

J. Stewart 
Single Variable Calculus: Early Transcendentals 
4th 
1410 & 1420 
J. Stewart 
Single Variable Calculus 
4th 
1410 & 1420 
L. Goldstein, D. Lay, D. Schneider 
Calculus and its Applications 
9th 
1410 & 1420 
H. Anton, I. Bivens, S. Davis 
Calculus 
7th 
1410, 1420, 2410 
L. Goldstein, D. Schneider, M. Siegel 
Finite Mathematics and its Applications 
7th 
1500 
P. Long & J. Graening 
Finite Mathematics: an Applied Approach 
2nd 
1500 
D. Moore 
The Basic Practice of Statistics 
2nd 
1600 
C. Brase & C. Brase 
Understanding Basic Statistics 
2nd 
1600 
W. Mendenhall, R. Beaver, B. Beaver 
Introduction to Probability & Statistics 
10th 
1600 
G. Keller & B. Warrack 
Essentials of Business Statistics 
2nd 
1610 
K. Black 
Business Statistics for Contemporary Decision Making 
4th 
1610 
D. Wackerly, W. Mendenhall III, R. Scheaffer 
Mathematical Statistics with Applications 
1620 

J. Romano & A. Siegel 
Counterexamples in Probability and Statistics 
1620 

L. Goldstein, D. Lay, D. Schneider 
Calculus and Its Applications 
9th 
1910 
T. Mikosch 
Elementary Stochastic Calculus with Finance in View 
1910 

J. Marsden & A. Tromba 
Vector Calculus 
5th 
2410 
S. Lipschutz & M. Lipson 
Schaum's Easy Outlines: Linear Algebra 
2530 

W. Nicholson 
Linear Algebra with Applications 
3rd 
2530 
H. Anton & C. Rorres 
Elementary Linear Algebra: Applications Version 
8th 
2530 
D. Hill & B. Kolman 
Modern Matrix Algebra 
2530 

D. Poole 
Linear Algebra: a Modern Introduction 
2530 

R. Penney 
Linear Algebra: Ideas and Applications 
2530 

S. Leon 
Linear Algebra with Applications 
4th 
2530 
A. Burris 
Understanding the Math You Teach 
3030 

D. Burton 
The History of Mathematics 
5th 
3110 
J. Murray 
Mathematical Biology 
3350 

J. Sandefur 
Elementary Mathematical Modeling: A Dynamic Approach 
3350 

D. Burton 
Elementary Number Theory 
5th 
3600 
E. Gaughan 
Introduction to Analysis 
5th 
4130, 4140 
R. Gordon 
Real Analysis: A First Course 
2nd 
4130, 4140 
B. Thomson, J. Bruckner, A. Bruckner 
Elementary Real Analysis 
4130, 4140 

W. Kosmala 
A Friendly Introduction to Analysis 
2nd 
4130, 4140 
J. Faires & R. Burden 
Student Solutions Manual to Accompany Numerical Methods 
3rd 
4330 
J. Gallian 
A Contemporary Introduction to Abstract Algebra 
5th 
4530 
E. Saff & A. Snider 
Fundamentals of Complex Analysis for Mathematics, Science, and Engineering 
2nd 
4600 
R. Churchill & J. Brown 
Complex Variables and Applications 
5th 
4600 
S. Ghahramani 
Fundamentals of Probability 
4630 
Popular Math Books
Author 
Title 
M. Fleischmann, D. Tildesley, R. Ball 
Fractals in the Natural Sciences 
R. Devaney & L. Keen (Eds) 
Chaos and Fractals: The Mathematics Behind the Computer Graphics 
M. Rubinstein 
Patterns of Problem Solving 
H. Berg 
Random Walks in Biology 
M. Kac 
Enigmas of Chance 
M. Gardner 
The Magic Numbers of Dr. Matrix 
G. Wiggins & J. McTighe 
Understanding by Design 
A. Zmuda, R Kuklis, E. Kline 
Transforming Schools: Creating a Culture of Continuous Improvement 
D. Littky 
The Big Picture: Education is Everyone's Business 