This lecture introduces the concept of measuring in various domains, focusing on electrical, optical, and microscale measurements, with a perspective on quantum measurements. The course includes exercise sessions, ungraded homework, and a final graded exam, emphasizing the use of Matlab. Additionally, it covers topics such as classical metrology, atomic force microscopy, and quantum metrology. The course structure is divided into different modules covering probability and statistics, electrical metrology, optical metrology, microscale measurements, nano-magnetism, and quantum measurements.