Some books which have fallen within Defense & Security Analysis's fields of interest have paved the way for further studies, either because they have opened up a new era for enquiry and research, or because they have introduced new approaches and methodologies to existing areas. Other volumes have had impact, but have, in their turn, owed an intellectual debt to an earlier work. Again, there are many books and studies on defense which have become forgotten or which were unappreciated at the time of their publication, but which have immediate relevance to today's problems. This section is designed to review books that fall within these categories with a view to highlighting how and why they deserve serious attention.