Eric Bailey is a Boston-based accessibility advocate, designer, writer, developer, and speaker. As a staff designer on GitHub's Primer design system, he works to make component libraries genuinely usable for people relying on assistive technologies. He is the longtime lead redesigner and maintainer of The A11Y Project, has published more than 200 articles across publications like CSS-Tricks, Smashing Magazine, and the GitHub Blog, and is a fixture on the conference circuit. His guiding line: if it's inaccessible, it is neither radical nor revolutionary.
Hidde de Vries is a Dutch front-end, design systems and web accessibility specialist who works on web standards for the Dutch government and sits on the W3C's Advisory Board. A co-editor of WCAG and WCAG-EM and a former Mozilla, W3C and Sanity contributor, he writes prolifically at hidde.blog about making technology work for humans, and is a regular conference speaker across Europe.
Jim Nielsen is a design engineer, writer, and curator with 20+ years at the intersection of design and code on the web. He writes the popular Jim Nielsen's Blog covering web development philosophy, design thinking, and the craft of building for the web. He's the founding engineer at Quadratic, co-creator of The iOS App Icon Book (€136K Kickstarter), and maintains the beloved iOS/macOS/watchOS icon gallery sites. A champion of the open web, HTML-first thinking, and the emerging 'design engineer' role, Nielsen bridges the gap between visual design and front-end engineering with rare fluency.
Robin Rendle is a British-born designer, writer, and developer currently working as a Software Designer at Apple. Known for his deeply humanistic approach to web design and typography, he has spent over a decade shaping how the web community thinks about CSS, type, and craft. He ran the CSS-Tricks newsletter for years, launched The Cascade - a member-supported blog about CSS - and maintains one of the web's most thoughtful personal sites with over 900 published notes. He holds an MA in Typography from the University of Reading and writes with a rare blend of technical precision and literary sensibility.
Scott Jehl is a Senior Software Engineer on the Web Performance team at Squarespace, a 20-year veteran of the front-end web who helped define modern responsive and performant design. He authored 'Responsible Responsive Design' (A Book Apart, 2014) and co-authored 'Designing with Progressive Enhancement' (2010), created foundational open-source tools like Respond.js, loadCSS, and Picturefill, and recently led the effort that brought lazy loading to HTML video and audio elements - an official web standard as of March 2026. He speaks globally, teaches online, and believes the web should work fast for everyone, everywhere.