• 2023/01/27: The French translation of the comic "On the other side of the clouds" will be at the Angoulême comic fair.
• 2023/01/26: Report about our comic "Hodeien gaineko aldean", at Berria newspaper

• January 2023: The comic "On the other side of the clouds" is going to be published in Spanish and French, by the publisher Bang.

• December 2022: The comic "On the other side of the clouds" is published, by Txalaparta, with a script by Bertol Arrieta and illustrations by Sandra Garayoa.

• May 2022: Arrieta has been awarded the "Author's Award" for writing the script for the comic strip "Hodeien gaineko aldean".

• December of 2021 "Café bar Bilbao" small theather award goes to Bertol Arrieta

• June 2021 "Gezurra berdaderoa" first novel of Bertol Arrieta has been published by Elkar Ed.

Article about the novel "Gezurra berdaderoa"

• October 2020: Arrieta has been chosen in the "Geuretik sortuak" project organized by Udalbiltza. He will have to spend 20 days in Zuia to write a short novel.

• June 2020: 3rd prize of the JUUL award for the short novel "Elurraren Formula".

• June 2019: The story "Besarkada bat, beharbada" has been published, by Elkar.

• February 2019: Bertol Arrieta was chosen in the "New Theatremaking" program; he will have to write a play within 5 months.

• April 2018: Arrieta shot the experimental short film "HIL (Morir)".

• February 2018: Arrieta winner of the short story competition named "Ignacio Aldecoa" with the story "Two black dobermans".

• October 2017 Arrieta awarded in the Lekeitio Basque film festival (best screenplay)

• September 2017: The short novel "The Snow Formula" for teenagers has been published, by Elkar.

• June 2017: Arrieta won the 3rd prize of the JUUL award with the story "The giraffe that lost its head".

Juul awards, in the Noticias de Navarra newspaper

• May 2015: "The giraffe that lost its head", a story for children aged 2-8, has been published by Elkar.

• March 2015: the short film "Odolean daramagu" will be recorded, with Arrieta's script, for the Literature festival to be celebrated in Zarautz.

• November 2007: The shooting of the short film "Vertical Blue Sea" has been completed.

• 2007/06/30: First prize in the Apota script competition for short films, with the script "Vertical Blue Sea".

• October 2006: the filmmaker Imanol Rayo will record a short film of the same name based on Bertol Arrieta's story "Happy New Year, Oswaldo".

• June 2006: the collective book "Ametsen baratza" is published; in between is Arrieta's story "Ttakun ttan ttakun".

• 2004/05/25: The storybook "Txikira beti hordago" has been published, by Erein.

• 2003/04/18: Bertol Arrieta won the City of Donostia prize with the story "What a wonderful world".

• 2002/02/14: Winner of the love letter competition.