The concept and results of achievement testing are the subject of serious conversation for many Americans – from educators to legislators. However, few teachers and parents view such testing as an integral part of teaching and learning. Testing standards of key education organizations and opinions of concerned citizens may be fleeting guides. The history of testing, the process for developing a formal test, testing abuse, misuse, and limitations are not widely known or understood even though we realize that testing is critical and here to stay. Achievement Testing explains the complicated concepts in a clear and user-friendly way to beginning teachers and students, as well as to experienced teachers who are looking for guidance in the ever-changing educational landscape.