Cooperative Print Storage is a hot topic Swiss libraries. An impressive Swiss cooperative storage library was opened in 2016. In March 2018, our colleagues from Basel University Library organised the 6th Kuopio Conference “A Matter of Trust: Cooperative Print Storage and Shared Archiving Initiatives”. All presentations are now online. In particular the one on HathiTrust Digital Library which gives access to so many journals archives, including rich collections of medical journals, very useful for the physicians wanting to investigate the past.