With every textbook you buy, you’re making an important 
investment in your future. And when those books are 
from Cengage Learning, you can be sure that you’re getting 
the best possible value for your money, because every book 
we publish reﬂ  ects our ongoing commitment to your success. 
From superior in-text features to our interactive online tools, we’re always striving to help you learn more in less time and get the grade you want.
Because our ﬁ  rst priority is your success, we understand that 
sometimes you need more than a textbook to master key 
course concepts and skills—and we’ve got you covered! Each of our books is available with a host of resources designed to support your speciﬁ  c learning needs, including options like:
/L50189 Text-speciﬁ  c Companion Websites with an array of study 
tools and practice activities
/L50189 eBooks and eChapters that allow you to access the 
material you’re looking for from any computer, anytimeYou’ve bought the book…
now get the most from your investment!
/L50189 Study Guide  to help you prep for exams with learning 
objectives, reviews of key concepts, and quizzing items.Additional electronic and print study tools are also available with many of our titles…in fact, this book is supported by:
Did you know?? 
Many Cengage Learning texts are also available as eBooks or in electronic chapters—they’re even rentable! Keep CengageBrain.com in mind if you 
think going digital or renting your next text would 
be the right choice for you. 
Get the best grade in the shortest possible time!
Visit www.CengageBrain.com to view over 
10,000 digital, print, and audio study tools.
Burger_SE_IFC.indd   1Burger_SE_IFC.indd   1 2/1/10   6:51 PM 2/1/10   6:51 PM