The dataset comprises user submitted tags (with dates) added to the British Library Flickr Commons collections up to March 2016. The images were algorithmically gathered from 49,455 digitised books, equating to 65,227 volumes (25+ million pages), published between c. 1510 – c. 1900. The books cover a wide range of subject areas including philosophy, history, poetry and literature. The dataset is in Tab Separated Values (TSV) format.