Project description:The dataset contains the first-ever comprehensive biocodicological analysis of medieval library books and chapters using zooarchaeological mass spectrometry (ZooMS). Here, we analyze 68 codices and 59 charters (1490 samples in total) from one single monastic institution, namely the Cistercian abbey of Orval in present-day Belgium. This dataset contains LC-MSMS analysis of samples from all charters (59 samples) and manuscript 22 (27 samples)