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The Lake District is famous the world over for its beauty and cultural history. Author and illustrator John Swanson has spent many years exploring its fells and valleys, and in this book he presents a personal view of what it is to be a fell walker, experiencing the hills with boots and cagoule. Filled with tales about walks, local history and famous local personalities, illustrated with nearly 200 drawings and hand-drawn maps, it is a book that will appeal to all who love the Lake District, whether they be hardened walkers or visitors of a more leisurely disposition.

Divorce rates are at an all-time high. But without a theoretical understanding of the processes related to marital stability and dissolution, it is difficult to design and evaluate new marriage interventions. The Mathematics of Marriage provides the foundation for a scientific theory of marital relations. The book does not rely on metaphors, but develops and applies a mathematical model using difference equations. The work is the fulfillment of the goal to build a mathematical framework for the general system theory of families first suggested by Ludwig Von Bertalanffy in the...