This is a workbook for students learning advanced blueprint reading for heating, ventilation, and air conditioning applications. The workbook contains eight units covering the following material: architectural working drawings; architectural symbols and dimensions; basic architectural electrical symbols; wiring symbols; basic piping symbols; ducting symbols; heating and refrigeration symbols; and isometrics, sections, and detail drawings. An overall final test is included. Each unit contains an objective and performance indicators, introduction, information sheets, self-assessment quiz with answers provided, and a study guide including references for further information. The materials are illustrated with line drawings. (KC)