For introductory biology course for science majors Campbell Biology in Focus is the best-selling "short" textbook for the introductory college biology course for science majors. Every unit takes an approach to streamlining the material that best fits the needs of instructors, based on surveys, curriculum initiatives, reviews, discussions with hundreds of biology professors, careful analyses of course syllabi, and the Vision and Change in Undergraduate Biology Education report. The Second Edition builds on the Campbell hallmark standards of accuracy, clarity, and pedagogical innovation, going beyond this foundation to help students make connections visually across chapters, interpret real data from research, and synthesise their knowledge.