The book has evolved through the author's 25 years of advising and writing on geodetic methods in which the aspect of learning by doing is stressed, including analyses of quality. Consequently, it covers practical aspects of geometrical geodesy and particulars of fundamental constants, horizontal and vertical datums, geoids, bi-axial ellipsoids and reference systems, units of frequencies and time, conformal projections, similarity transformations and spatial developments in electronic and acoustic positioning frames. The impact of information, communication and parallel computer technology with an ability to store and retrieve huge amounts of data is discussed up to the point where the compilation of relevant data is completely automated using comprehensive analyses on a worldwide distribution network.All Fortran computer subroutines described in the book can also be found on the enclosed CD-ROM, including compiled ready-to-run Fortran programs. A computer of modest capacity can cope with the algorithms.