Stålenhag's fourth art book, The Labyrinth, was announced in late 2020. Also in 2019, the Skybound edition was shortlisted for the Art Book category of the Locus Award. The Electric State (the Simon & Schuster edition) was one out of six finalists for the Arthur C. Simon & Schuster published the UK edition in September 2018, and Skybound Books published a North American edition the following month. It is centered around a girl and her robotic companion traversing the fictional state of Pacifica. More recently, Stålenhag has covered the western United States in a third artbook, The Electric State, which was also crowdfunded via Kickstarter. Both focus on the construction of a supermassive particle accelerator called the Loop.
Since then, it has been turned into two narrative art books: Tales from the Loop (Swedish Ur Varselklotet) in 2014 and Things from the Flood (Swedish Flodskörden) in 2016. Most of Stålenhag's artwork was initially available online, before later being released for sale as prints. Even after switching to digital methods, he has stated that he puts "a lot of effort into making the digital brushes behave naturally and preserve a certain amount of 'handwriting' in the brush strokes." The majority of his work is based on pre-existing photographs that he takes these are then used as a starting point for a number of rough sketches before the final work is completed. Initially, he attempted to use various physical media to mimic a more traditional style, including gouache. Stålenhag uses a Wacom tablet and computer for his work, which is designed to resemble oil painting. He also did some promotional artwork for the sci-fi video game No Man's Sky. In 2016, he followed this with pictures of hypothetical results of a rising ocean under climate change for Stockholm University's Resilience Centre. Outside of his usual canon, Stålenhag also drew 28 pictures of dinosaurs for the Swedish Museum of Natural History's prehistoric exhibits after he rediscovered his childhood interest in the creatures, and contacted the museum to see if he could do anything. ever since the early 20th century, attitudes and budgets were much more in favour of science and technology." In a 2013 interview with The Verge, Stålenhag said, "The only difference in the world of my art and our world is that. In parallel with the real-life decline of the Swedish welfare state, large machines slowly fail, and the eventual result of this remains a mystery. Īs his work has evolved, Stålenhag has created a backstory for it, focused around a governmental underground facility. These ideas result in a body of work that can feature giant robots and megastructures alongside regular Swedish items like Volvo and Saab cars. According to Stålenhag, this focus originates from his perceived lack of connection with adulthood, with the science fiction elements being added in part to draw audience attention and partly to influence the work's mood.
Thematically, his work often combines his childhood with themes from sci-fi movies, resulting in a stereotypical Swedish landscape with a neofuturistic bent. Stålenhag experimented with science fiction artwork after discovering concept artists such as Ralph McQuarrie and Syd Mead initially, this body of work was done as a side project, without any planning behind it. He was inspired by different artists, including Lars Jonsson. Stålenhag grew up in a rural environment near Stockholm, and began illustrating local landscapes at a young age.