Each year’s festival has its own character, shaped by factors such as Scotland’s themed years, which provide creative stimulus for programmes, such as the Year of Young People and the Year of Coasts and Waters.
Other developments such as Foraging Fortnight have given a distinctive flavour to particular years.
There have been special visitors who have shaped the programme, such as Jane Goodall, or Nobel laureates Peter Higgs and Sir Paul Nurse.
There have also been collaborations with organisations and community groups on topics ranging from astronomy to renewable energy.
You can see from the picture from each year how varied the programme is, and our thanks go to so many people and groups for the imagination and energy they have put in to it.