Since 2009, Kertu Sillaste has taken part in exhibitions in Estonia, Denmark, Finland, Germany, Italy, Hungary, Latvia, Poland, Russia, Slovakia, Italy, and the United Kingdom.

2023
VII Tallinn Illustrations Triennial (TIT 2023), Estonian Museum of Architecture
Solo exhibition "Assembled Pictures", Estonian Children’s Literature Centre, Tapa Public Library
Biennial of Illustrations Bratislava (BIB 2023)
Exhibition of Estonian illustrators "Fresh Book Pictures", Estonian Children’s Literature Centre, Tapa Town Library, Kohila Library, Kärdla Culture Centre

2022
Exhibition of Estonian illustrators "It's Christmas time", Estonian Children’s Literature Centre
Tallinn Illustration Triennial TIT 2020, Centrum Kultury Dworek Białoprądnicki , Poland
Estonian illustrators in the studio shop Karud ja Pojad R Gallery in Aparaaditehas (LUUP festival)

2021
Tallinn Illustration Triennial TIT 2020, Moscow; Krasnoarmeysk, Russia
Biennial of Illustrations Bratislava (BIB 2021), Slovakia
TIT 2020 & "Leafing Through Estonian Children's Books IV", Mytishchi, Russia
Exhibition of Estonian artists "Christmas Tale", Syktyvkar, Komi Republic
"Little Grimm", Kostivere, Estonia

2020
Tallinn Illustrations Triennial (TIT), Estonia
International illustrations exhibition "It's Always Tea-Time", Vyborg, St. Petersburg, Russia; Kondas Centre, Viljandi
Exhibition of Estonian illustrators "Once Upon a Time..." (Grimm's fairy tales), Tapa Public Library; Gallery Deák17, Budapest, Hungary

2019
Biennial of Illustrations Bratislava (BIB), Slovakia
Spring exhibition of Estonian illustrators, Estonian Children’s Literature Centre
International illustrations exhibition "It's Always Tea-Time", Moscow, Krasnoarmeysk, Mytishchi, Russia
Exhibition of Estonian illustrators "Once Upon a Time..." (Grimm's fairy tales), Gdansk, Opole, Poland; Tapa Public Library
Group exhibition of Estonian illustrators “Leafing Through Estonian Children’s Books II”, Moscow, Kolomna, Russia

2018
Exhibition of Estonian illustrators „Masters of Estonian children’s books”/“Power of Pictures” in Russia: Krasnoarmeysk, Moscow

2017
Biennial of Illustrations Bratislava (BIB), Slovakia
Tallinn Illustrations Triennial (TIT), Estonia
Spring exhibition of Estonian illustrators, Estonian Children’s Literature Centre
Exhibition of Estonian illustrators “A Window into the Fairy Tale World”, Haapsalu, Estonia

2016
Spring exhibition of Estonian illustrators, Estonian Children’s Literature Centre
Exhibition of Estonian illustrators “Fairy Tales Come to Visit”, New York Estonian House, USA
Travelling exhibition of Estonian illustrators, “A Walk on the Path of Fairy Tale Together with Charles Perrault”, Moscow, Krasnoarmeysk, Mytishchi, Russia
Exhibiton of Estonian illustrators “Neighbours Who Love Reading”, Pskov, Russia

2015
Biennial of Illustrations Bratislava (BIB), Slovakia

2015–2020
International illustration exhibition, “It’s Always Tea-Time”, Estonian Children’s Literature Centre, Tallinn; Riga, Latvia; Uusikaupunki, Finland; Gdansk, Wrocław, Toruń, Elbląg, Poland; Berlin, Germany; Szczecin, Płock, Poland; Budapest, Hungary; Oxford, the United Kingdom; Moscow, Krasnoarmeysk, Mytishchi, Vyborg, St. Petesburg, Russia

2015–2018
Exhibition of Estonian Illustrators, “Once Upon a Time...” (Grimm’s Fairy Tales), Aosta, Anagni, Lagonegro, Bernalda-Metaponto, Corato, Matera, Roma, Lacco Ameno, Irsina, Siracusa, Sassari, Roma, Bologna, Italy; Estonian Children’s Literature Centre, Tallinn, Estonia; Gallery “Culture University”, Minsk, Belarus; Kraków, Białystok, Szczecin, Płock, Warszaw, Elbląg, Gdańsk, Poland

2014–2017
Travelling exhibition “Tallinn Illustration Triennial 2013. Estonian Illustrators”, Estonia, Poland

2013–2015
Exhibition by Estonian and Hungarian illustrators, “Crisscross Stories”, Estonia, Hungary, the United Kingdom

2013
Biennial of Illustrations Bratislava (BIB), Slovakia
Tallinn Illustrations Triennial (TIT), Estonia
Travelling exhibition of Estonian illustration, “Etelästä tuulee – Lõunatuul puhub” (The South Wind Blows), Finland

2012–2013
Exhibition by Estonian illustrators, “Old Fairy Tales” (Brothers Grimm), Estonia, Russia
“A Handful of Book Illustrations by Estonian Artists”, Poland

2011–2018
Exhibition of artists from the Baltic Sea countries, “Sea Fairy Tales”, Estonia, Finland, Russia, Poland, Germany, Denmark, Estonia

2011
Biennial of Illustrations Bratislava (BIB), Slovakia

2010–2011
Travelling Exhibition of Estonian Book Illustration, Russia, Finland

2009, 2011
Solo exhibitions, Tallinn Central Library, Estonia

2009–2010
Exhibition of Estonian illustrators, “A House Full of Fairy Tales”, Estonian Children’s Literature Centre, Tallinn