The 2026 National Children’s Day collection features the “Naïve Art” of National Artist Krirk Yoonpun, blending whimsical storytelling with philatelic tradition.

Thailand has unveiled its 2026 National Children’s Day commemorative stamp collection, a set that distinguishes itself this year through a high-profile collaboration with one of the kingdom’s most celebrated literary and visual artists.

The collection features the work of Prof Krirk Yoonpun, a National Artist in Literature and a prolific illustrator of over 200 children’s books.

The 2026 issue pivots away from traditional graphic design, instead embracing “Naïve Art”—a style defined by its childlike simplicity, warmth, and unrefined perspective that resonates across generations.

The collection is comprised of two distinct designs that capture the essence of childhood innocence and humour.

The first features the beloved character “Yai Chao,” depicted in a gala dinner gown—a whimsical nod to the creative dress-up games of childhood.

The second design utilizes a blue-and-white palette set against a vibrant orange-yellow background, intended to represent the “untethered imagination” of youth.

The choice of Prof Krirk as the featured artist adds significant weight to the 2026 series.

Known for his friendly lines and vivid use of colour, his work is regarded as a cornerstone of Thai children’s literature.

By adapting his illustrations for philately, the series acts as a portable archive of his career-long dedication to the “innocent” aesthetic.

To complement the launch, a special exhibition of Prof Krirk’s original artwork has been established at the Thai Philatelic Museum in Samsen Nai.

The exhibition, which runs until 25 January, allows the public to view the large-scale inspirations behind the miniature prints.