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The book tells the story of the development of the measurement of gravity (the 'little g' of the title), from Galileo and early experiments with pendulums and falling bodies through to today's use of satellites. The steady increase in accuracy through time is a recurrent theme, but the main focus is on the people involved, many of whom were notable eccentrics. The book is also concerned with the reasons WHY people have felt it would be useful to measure 'g', with increasing emphasis in later chapters on its importance in modern geology. It is also, in part, a personal memoir, and the drawing of parallels between what we do today and what has been done in the past has been an especially enjoyable part of the work of writing. The book concludes with a series of 'Codas', short sections where the science and maths are dealt with in more detail than in the main text.