In 2002, David Alexander wrote Principles of Emergency Planning and Management. Long a standard reference work in that book he described the processes of preparing for and responding to disasters, crises, and civil contingencies. He based the work on principles because he wanted to dissociate it from any particular system of emergency management. Then, as now, many books in this subject are tied to individual systems of public administration, particularly the federal system of the United States of America, which somewhat limits their usefulness in other contexts. However, there is no ‘one-size-fits-all’civil protection system that can act as a template for all eventualities. Nevertheless, David Alexander does not believe that, in terms of how emergency response is organized, there must necessarily be fundamental differences between the world’s richest and poorest countries. They all need safety and rapid response to civil contingencies. All countries can learn from others and derive benefit from incorporating good practice from abroad into their own systems, with modifications to fit local conditions. Equipment may be expensive, but planning to make the best use of what one has or can afford is not likely to break the bank.The feedback he received from the Principles book was generally positive, but it indicated that some readers were facing with severe practical problems in frontline jobs that required them to provide workable answers. Many were new to emergency planning and did not know where to start. So, when David Alexander found the time to consider building on his earlier Principles, he decided to give it a more ‘hands on’ profile and to endeavor in meeting the needs of people who had been given the task of writing and implementing emergency plans. To maximize the geographical scope of the book, he decided to stay with his decision not to tie the explanations to particular systems and countries, in the expectation that users of the new book will be able to make the necessary connections and adapt his general approaches to the configuration of services in any country or region.Some readers may be skeptical about the value of emergency planning. It is true that in a crisis the first thing that goes out of the window is the plan. However, David Alexander believes passionately, not in the plan as a document or instrument, but in the process of planning. He believes that emergency planning should be a flexible process that is able to adapt to dynamically changing circumstances. Moreover, the process must not stop when a basic document, ‘the plan, ’ has been prepared: it should continue right through the next emergency to the recovery phases.An emergency plan is a structured document, an instrument that outlines the responses envisaged for certain kinds of civil contingency, such as a flood, a major snowstorm or a transportation crash with casualties.Emergency planning is simultaneously an art and a science. It involves ‘thinking the unthinkable’, so that people can be ready for those aspects of an emergency that require preparation beforehand because they cannot effectively be improvised during the crisis. There are so many ramifications of emergency planning that not all of them can be covered in a book such as “How to Write an Emergency Plan.” However, the skill that must be learned is to think through the implications of prior decision-making. Some implications are obvious but many are not, which is one of the main justifications for writing this book. There are good emergency plans and there are bad ones. A plan may be too obtuse, complex, grandiose, idealistic; too detailed or too general; or good in theory but bad in practice. Thus there is always room to improve. The failure of a plan to solve the problem of how to respond to an emergency does not invalidate planning as such; rather, it demands a better plan and a renewed effort to improve the process of planning.