Why choose a digital textbook format? Selecting a digital book is not only easy on the environment and on your back (why lug around heavy textbooks if you don't have to)... but it lets you get so much more out of your course book. Interactive features make a digital textbook so much more than just online version of your textbook. You can easily search the material, make notes within the text and share information with your fellow students ....plus because you can use the digital text from up to 3 different computers, you can access the material from home, school, work making this a highly mobile choice! You can purchase the digital text right away or take advantage of the Try Now, Buy Later option which gives you 7 days to try the digital text before you make a decision to purchase.