The Middle Persian Dictionary Project (MPDP), edited mainly by Shaul Shaked, Emeritus Professor at the Department of Comparative Religions at the Hebrew University of Jerusalem, is a research tool for all varieties and genres of Zoroastrian Middle Persian.
The scope of the texts to be included is all varieties and genres of Zoroastrian Middle Persian; all the available Middle Persian inscriptions; all the texts in Manichaean Middle Persian; a selection of texts in Pazand; a small selection of words, chiefly of religious content, in Zoroastrian New Persian, to be quoted with the appropriate Middle Persian forms.