The book can be used by University and College students whose first language isn't English. It is written for specialists in Metrology and Measurement. It consists of two parts, namely Concepts of Measurement and History of Measurements. Each unit contains both lexical and grammatical exercises and texts for reading and discussing. The book structure allows to cover main topics of the Measurement theory, methods, qualification, certification, error evaluation, etc. From the first civilizations up to now the whole history of the physical units, development of the SI Units can be traced. There are tables for transforming Metric units to British and American and vice versa.