http://www.librariesweek.org.uk/ and this is the twitterstream https://twitter.com/hashtag/LibrariesWeek?src=hash
The focus is on wellbeing, with the infographic on the right having been produced for the week. Initiatives highlighted in public libraries include Reading Well, and of course there are the health and medical libraries that can showcase what they are doing e.g. https://kfh.libraryservices.nhs.uk/explore-our-innovations-during-libraries-week-2018/. The School Library Association is running a library/wellbeing photo competition https://www.sla.org.uk/blg-library-wellbeing-photo-competition.php
Obviously there can be a link between information literacy, libraries and wellbeing. I was reminded first of all about the Augustana Human Library in Canada, and as another example there are presentations concerning libraries and wellbeing here.