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In his award-winning series, James Burke finds links between topics that others have never considered. By showing how political, social, economic, and cultural influences affect inventions and discoveries, he provides a clear picture of scientific developments, placing them in their historic context. In Connections 2: Sentimental Journeys, he examines the factors that had a role in the making of maps. These are many and varied, and include color dyes, Sigmund Freud, hypnotherapy, shock therapy, Fraunhoffer lines, spectroscopy, telescopes, and brain cells.