Apart from the most historical materials collected from those historical books written in biographical style , the most valuable things are the many rare chorographic materials preserved in this book , which are of better reference value for researching the history of wei , jin , northern and southern dynasties as well as the history and geography of the nanjing district 全书20卷，采摭繁富，有不少史料多出正史之外，还保存了许多稀见的方志地记资料，弥足珍贵，对研治魏晋南北朝历史及南京地区历史地理等具有较高的参考价值，可惜长期以来未能得到应有的重视。
