October 26, 2018 Thomas Instituut Jaarboeken online! October 26, 2018/ Joseph G. Trabbic In case you didn’t know, all the Thomas Instituut Jaarboeken from 1981 to 2017 are now available online! You can download all of them as PDF files. This is really nice. For Jaarboeken 1981-2000 go here, and for Jaarboeken 2001-2017 go here.