Displaying photos of insects

[davholla]

In the UK there are soon to be two entomology exhibitions.
I am thinking of taking some photos to display - maybe some from last year in Colombia.
Any idea on how to display them? The size etc? Ideally I would want something not to big as one I will go to via public transport.
Details for those interested of the exhibitions :-
https://www.amentsoc.org/events/listings/0974/

http://www.benhs.org.uk/event/annual-exhibition-2019/