Maarten Hooijberg studied Geodetic Engineering at the College of Advanced Technology, Utrecht, The Netherlands, and received his BSc degree in 1959. Since 1959 he has worked as a civil engineer, hydrographer and land surveyor in many countries throughout the world: Switzerland, United Kingdom, the rainforests of South-East Asia and South America, the swamps of West Africa, and the sands of the Arabian Peninsula. In 1970 Hooijberg joined the Royal Dutch Shell Group. From 1974 until 1986, he was the independent head of topographical services at Billiton International Metals in the Northern Hemis...