Campbell Biology delivers a trusted, current and pedagogically innovative experience that has provided millions of students with a solid foundation in college-level biology and with a true understanding of biology. The author team advances Neil Campbell's original vision of equipping students such as you at individual skill levels with tools, visuals, resources, and activities that engage you in learning. This solution strategically integrates text and artwork to reinforce key concepts, build scientific skills and promote active learning. The 12th Edition meets your needs with new student-centered features, downloadable Reading Guide worksheets emphasizing key concepts, and a revised assessment program. This edition further supports you with new visual presentations of content and new study tools while engaging and guiding you in an active process of inquiry and learning. Personalize learning with Mastering Biology with with Pearson+ eTextbook This flexible digital platform combines unrivaled content, online assessments, and customizable features to personalize learning and improve results. Pearson+ eTextbook is an easy-to-use digital textbook available within Mastering® that lets you read, highlight and take notes, all in one place. NOTE: This Mastering combo access pack includes a Mastering access card plus a loose-leaf print version (delivered by mail) to complement your Mastering experience. To register for and use Mastering, you will need either a course ID from your instructor or an invitation link that your instructor will send you directly. Used books, rentals, and purchases made outside of Pearson If purchasing or renting from companies other than Pearson, the access codes for the Mastering platform may not be included, may be incorrect, or may be previously redeemed. Check with the seller before completing your purchase.