This anthology of cyber analogies will resonate with readers whose duties call for them to set strategies to protect the virtual domain and determine the policies that govern it. Our belief it that learning is most effective when concepts under consideration can be aligned with already-existing understanding or knowledge. Cyber issues are inherently tough to explain in layman's terms. The future is always open and undetermined, and the numbers of actors and the complexity of their relations are too great to give definitive guidance about future developments. In this report, historical analogies, carefully developed and properly applied, help indicate a direction for action by reducing complexity and making the future at least cognately manageable.