本书共收录了四种唐代史料笔记。《教坊记》记录了唐代开元时期的教坊制度.艺人轶事，并著录了教坊曲名三百多首及乐曲内容，是研究唐代音乐百戏的重要原始资料。《次柳氏旧闻》主要记唐玄宗宫中事。《开天传信记》记述了唐开元天宝时期朝廷政事.宫掖秘事.社会风俗.世态习尚等。《乐府杂录》记录了唐开国以来的雅郑之乐及始末。这四种笔记属同一类型，重在制度故事的描述，故辑为一册，以方便读者阅读。

The key to good and efficient writing lies in the intelligent organisation of ideas and notes. This book helps students, academics and nonfiction writers to get more done, write intelligent texts and learn for the long run. It teaches you how to take smart notes and ensure they bring you and your projects forward. The Take Smart Notes principle is based on established psychological insight and draws from a tried and tested note-taking-technique. This is the first comprehensive guide and description of this system in English, and not only does it explain how it works, but also why. It suits students and academics in the social sciences and humanities, nonfiction writers and others who are in the business of reading, thinking and writing. Instead of wasting your time searching for notes, quotes or references, you can focus on what really counts: thinking, understanding and developing new ideas in writing. It does not matter if you prefer taking notes with pen and paper or on a computer, be it Windows, Mac or Linux. And you can start right away.