Graph algorithms Shimon Evens Graph Algorithms published in 1979 was a seminal introductory book on algorithms read by everyone engaged in the field. This thoroughly revised second edition with a foreword by Richard M. Karp and notes by Andrew V. Goldberg continues the exceptional presentation from the first edition and explains algorithms in a formal but simple language with a direct and intuitive presentation. The book begins by covering basic material including graphs and shortest paths trees depth first search and breadth first search. The main part of the book is devoted to network flows and applications of network flows and it ends with chapters on planar graphs and testing graph planarity