"The Archbishop is a gift to South Africa and the world. He has consistently, sometimes in the face of great odds, demonstrated to people worldwide that ubuntu, respect, forgiveness, integrity, reconciliation and compassion are values worth upholding," says the foundation's CEO Piyushi Kotecha.

"Living according to these values is often difficult, but they are the essence of ethical, servant leadership and we are eternally indebted to Desmond Tutu for never wavering from showing us the way. Now we offer you a chance to give him the gift of your conscious reflection of these values," adds Kotecha.

The campaign will lead up to another of the foundation's gifts to the archbishop (the Truth to Power exhibition), which will be launched in Cape Town in October for the archbishop's 90th birthday.

Through the '#90GiftsForOurTutu' campaign, the foundation is inviting the public to celebrate Archbishop Tutu's life by performing small acts of goodwill from Friday, 9 July to the archbishop's birthday on Thursday, 7 October.

Those who join the '#90GiftsForOurTutu' campaign will also receive sneak peeks of the Truth to Power exhibition and notifications of several exciting events taking place in the run-up to the archbishop's birthday.

Truth to Power is a first-of-its-kind showcase of the archbishop's contribution to South African and world history and will be on permanent display at the Old Granary building in Cape Town, which is home to the foundation's offices.

The exhibition forms part of the foundation's Knowledge Legacy Programme, which aims to showcase the profound impact Archbishop Tutu has had on the world, through its programmes, interactive exhibitions, events and educational material.

For more information, visit www.tutu.org.za. You can also follow the Desmond and Leah Tutu Legacy Foundation on Facebook, Twitter or on Instagram