This document discusses the concept of aptitude, defining it as a special ability related to competency in specific tasks, and outlines various types of aptitude tests, including mechanical, clerical, musical, graphic art, and scholastic tests. It highlights the importance of these tests in predicting future success, assessing individual strengths and weaknesses, and uncovering hidden talents, particularly for children. The conclusion emphasizes that aptitude-based assessments are valuable tools for career guidance and educational development.