This work offers an instructional approach to lifelong understanding of pharmaceutical calculations. Featuring real-world practice problems, it can be used in the classroom, for the national Pharmacy Technician Certification Examination, or for the pharmacy practice setting. The book covers every topic related to pharmaceutical calculations that a pharmacy technician needs to know. There are 502 practice problems spread through the book's 12 chapters, with answer key and solutions in the back. It concludes with a 101-question post-test - each question being a real-world problem a technician might encounter in pharmacy practice - with an answer key and solutions for these.