The final edition of this was published in 1977, so a completely revised and updated new edition of Project Surveying became a necessary requirement, should the book continue its service to the surveying and civil engineering students and profession in the same successful way as from the very first publication in 1966. The view held at the time still stands in full force, namely that the analytical knowledge of the precision and reliability of the numerous combinations of observational methods and computational (statistical) processing in inseparable connection with the subsequent engineering action, constitutes the very basis of the organisation of surveys and the underlying decisions in respect of procedures and economy.