Simplified Technical English
Standard for Technical Documentation
European Union Trade Mark No. 017966390
The official page of the ASD Simplified Technical English Maintenance Group (STEMG)
ASD-STE100 Simplified Technical English (STE for short) is a controlled natural language and an international standard to write technical documentation. It is fully owned by ASD, Aerospace, Security and Defence Industries Association of Europe, Brussels, Belgium.
STE was developed in the late 1970s by the European Association of Aerospace Industries (AECMA, now ASD), with support from the Aerospace Industries Association of America (AIA), upon request from the European airlines (formerly, AEA). The goal was to make aircraft maintenance documentation easier to understand for readers with only a basic command of English. The resulting AECMA Simplified English Guide was released in 1986. In 2005, it became an international specification, and in 2025 it became an international standard: ASD-STE100 Simplified Technical English.
Still at the core of technical documentation
Used in a wide range of sectors, including language services
Adopted by universities and researchers worldwide
Food and beverage packaging, restaurant menus, movie titles, and creative event posters where a rigid geometric font would feel too cold. Best Practices for Designing with PSL Display Thai Fonts
In the rapidly evolving world of digital design, typography is no longer just about letters on a screen. It is about emotion, readability, and cultural resonance. For designers working with the Thai script—one of the most complex and visually stunning writing systems in the world—choosing the right typeface is a monumental task.
Historically, Thai script is characterized by its "loops"—the small circles at the start of most characters. However, as Thailand modernized and integrated Western design principles, a "loopless" or "Latin-like" movement emerged. psl-display font thai
: It is primarily a display typeface , meaning it is designed for maximum visual impact in large sizes like titles, banners, and logos.
: The "Pro" family typically includes several weights and styles: PSL Display Pro Regular PSL Display Pro Bold PSL Display Pro Italic PSL Display Pro Bold Italic Acquisition and Licensing Food and beverage packaging, restaurant menus, movie titles,
: PSL Display is included in several PSL releases, notably Series 1 through 5, which collectively contain hundreds of variations. Common Variants PSL Display New Pro
He had been a typographer in the old analog world, a man who believed that a letter’s soul lived in its serif. When he died suddenly during the 2011 floods, all that remained of his final project was a corrupted USB drive and a cryptic note: “PSL-Display. The seventh curve.” For designers working with the Thai script—one of
If you're interested in learning more about PSL-Display Font Thai or typography in general, here are some additional resources: