This textbook is written to provide nursing students with all the skills needed to perform drug calculations with speed, accuracy, and confidence. A single computational technique is used throughout the 35 modules presented; dimensional analysis. Each module provides: 1) Introduction/overview 2) Instructional Information 3) Several example problems showing step-by-step procedure 4) Practice Problems 5) Answer Key The Table of Contents may be viewed at: https://swtcmathscience.wixsite.com/swtcmath/textbooktoc The textbook is written by Pete Esser, a mathematics instructor at Southwest Wisconsin Technical College. Pete has helped hundreds of nursing students improve their drug calculation skills over his 32 year career at the college. The questions that students have asked during these learning sessions have actually inspired the majority of the topics and content in the book! The second edition features the additions of 10 new modules along with improvements in several of the other modules.