Tongans enjoy a relatively high level of education, with a 98.9% literacy rate, and higher education up to and including medical and graduate degrees (pursued mostly overseas). They hold the body of academic knowledge created by their scholars in high esteem and the Kukū Kaunaka Collection which comprises every PhD and Masters dissertation written by any Tongan in any country is archived by Seu'ula Johansson-Fua at the Institute for Education in Tonga.