荷兰
研究报告这位艺术家的头像，一对乞丐夫妇，一位老人和一位老妇人的头像`Sheet of Studies; Head of the Artist, a Beggar Couple, Heads of an Old Man and Old Woman (1632) by Rembrandt van Rijn
荷兰
研究表（一名妇女卧病在床）`Sheet of Studies (with a woman lying ill in bed) (c.1639~1642) by Rembrandt van Rijn
德国
研究虚构的林地生物和其他人物`Studies of Imaginary Woodland Creatures and Other Figures (mid~19th century) by Moritz Von Schwind
荷兰
那不勒斯附近拉戈·卢克里诺（Lago Lucrino）的Cicerone别墅和帕埃斯图姆（Paestum，意大利）寺庙的研究`Studies of the Villa Cicerone at the Lago Lucrino near Naples and of the Temple at Paestum (Italy) (mid~19th century) by Pierre Louis Dubourcq
法国
对圣母和圣女的研究哀歌`Studies of the Virgin and Holy Women for ;The Lamentation (1842–43) by Eugène Delacroix
意大利
从下面看先知和推杆的天花板研究`Ceiling Studies of a Prophet and a Putto Seen from Below (c. 1602) by Giulio Cesare Procaccini
