Another retrospective was held at the Tamaris Villa in France in 2011 followed by a solo exhibition in Tokyo, Japan in 2015 and 2019. He also exhibited at the Museum of History and Religion in St. Petersburg in 2009 where he had been honored for his overall contribution to the Arts in 2015. Other exhibitions took place on Patmos and on Mykonos, as well as at the Pierre-Alain Challier and Sophie Scheidecker Galleries in Paris in 2018.

A retrospective exhibition was organized at the Historical Archive Museum of Hydra (I.A.M.Y.) in 2018 presenting the life and work of Fassianos in France. The exhibition gathered works from those years, illustrations for books written by important French poets and writers, limited-edition books with unique lithographs created for select publishing houses, posters designed for the Cannes Film Festival as well as France’s largest book fair “Salon du Livre”. On the occasion of Francophone Week, the General Delegation for the French language and the languages of France commissioned Alekos Fassianos to create the poster for the celebrations of the 100th anniversary of Nobel Prize-winning author Albert Camus’ birth.

In 2019, a retrospective exhibition was organized presenting his work in collaboration with the poet Vangelis Chronis at the B & M Theocharakis Institute of Fine Arts and Music in Athens. In 2020 a retrospective exhibition will take place in Paris focusing on his friendship with the French author Yves Navarre. The exhibition organized in collaboration with the Les Amis d’Yves Navarre Foundation and Dimitris Sabatakakis will include illustrations by Alekos Fassianos for Yves Navarre’s books, as well as excerpts from letters exchanged between the two friends and an array of related material from that period.