The next ICVS summer school will run from Monday 11th August to Friday 15th August 2025, with students arriving on Sunday 10th. As in previous years, it will take place at Pembroke College, Oxford, UK. We will post further details soon. In the meantime, please put these dates in your diary.
Oct 9th. The latest issue of Daltoniana (#124) has just been emailed out to to all who requested it via your GDPR permissions. If you haven't received a copy, please send a message via the contact page. Daltoniana issues 1-123 are available from this website for download.
Dear Andre, Barry and Jay
We missed you in Ljubljana. We recorded a very amateurish video to say 'hi' from the business meeting. It started recording just as John was talking about you, Andre, and how this is the first IRGCVD/ICVS that you have not attended. And, Barry and Jay, we wanted to send you both our best too. We hope all three of you are now in better health.
Although this is on the website, it is only visible to people I've sent the link to (i.e. the 3 of you). It was too big to email! You'll need to download it so right click on the link below and use "save as" or whatever the Apple equivalent is! Email me (
With best wishes.
Right-click to save video
STOP PRESS
Updated 30th may 2024
I am informed by the conference organisers that the problem with their 3rd party payment server has now been resolved, so that most people can now make their credit card payments. I understand from them that, due to local bank issues, one or two American and Japanese delegates may still encounter credit card issues. Do please go ahead and complete your registration ASAP. Please address your registration queries to the conference bureau on
Stop press: we have extended the deadline for the 2025 summer school