Proven to help students improve grades and study more efficiently, SmartBook(R) for Principles of Environmental Science contains the same content within the print book, but actively tailors that content to the needs of the individual student. SmartBook's adaptive technology provides precise, personalized instruction on what the student should do next, guiding the student to master and remember key concepts, targeting gaps in knowledge and offering customized feedback, driving the student toward complete comprehension and retention of the subject matter. Available on desktops, laptops, and tablets (and accessible offline ), SmartBook for Principles of Environmental Science puts learning at the student's fingertips--anywhere, anytime.