Sikuquanshu has been collected, but the version is poor, and there are rare copies to replace it;
Books not included by the official of Siku Library who despises opera novels. Wang Niansun, Ruan Yuan, Dai Zhen, Weng Fanggang, Peng Ren, Sun Xidan and other "Ganjia School" works in the middle of Qing Dynasty, and Wei Yuan, Gong Zizhen, Kang Youwei, Liang Qichao and Zhang Taiyan in the late Qing Dynasty.
In addition, ancient books that meet the requirements of this book, as well as newly unearthed bamboo slips and silk books, are also selected as appropriate.