The author of over 70 articles and chapters, Tannisha has written and edited numerous books including The Opening of University Education to Women in Ireland; A Cultural History of Education in the Modern Age; and Piety and Privilege: Catholic Secondary Schooling in Ireland .

She is a Fellow of both the RASS and the MHA, an Ireland Canada University Foundation Flaherty Visiting Professor, and a Fulbright Scholar in the Social Sciences.Tannisha has held Visiting Fellow appointments at Harvard University, the University of Cambridge, University College London, the University of Toronto and Boston College.