The National Palace Museum has more than 10,000 pieces of Chinese jade from various historical eras, but most had been collected by the Qing court – only a small portion has come through recent purchases and donations. The old Qing collection records usually mark these with the labels "ancient jade" (guyu), "old jade" (jiuyu), and "Han jade" (hanyu), all of which are vague about era and meaning. In recent years, the Museum's staff have reorganized the Qing palace jades and the recently purchased and donated jades in the light of various archaeological materials and in-depth research. On this basis, the Museum is producing a number of exhibitions, publishing research findings, and publishing an entire series of books on these jades. The latter series, entitled Select Jades in the National Palace Museum, covers Chinese jade objects beginning from 8,000 or 9,000 years ago, and it divides this historical legacy into four periods: (1) the Neolithic and Xia eras; (2) the Shang, Zhou, Han, and Jin eras; (3) the Northern and Southern dynasties era to the Yuan dynasty; and (4) the Ming and Qing dynasties. The corresponding parts will be titled "The Spirit of Jade" (which includes the General Introduction), "The Virtue of Jade," "The Blossoms of Jade," and "The Ingenuity of Jade" – titles that highlight the characteristics of jade from their respective eras. Each of these will be subdivided into several volumes, the specific number depending on the quantity of content. The main content of each will also be presented in both Chinese and English.