Accessible Open Textbooks in Math-Heavy Disciplines
https://richardzach.org/2025/03/accessible-open-textbooks-in-math-heavy-disciplines/The challengeThe authoring platform of choice in many math-heavy disciplines is LaTeX. It produces typeset documents of excellent quality and handles formulas and mathematical diagrams extremely well. Practically every researcher or instructor in mathematics, physics, and computer science is adept at using it, and it has a wide user base outside these core disciplines as well (e.g., philosophy and economics).
Unfortunately, it only produces PDF output. PDF is not an accessible format: it does not scale well to display on tablets or phones, text does not reflow, it contains no semantic information (e.g., what’s a heading or what’s a list), images, formulas, and diagrams are only visually accessible. This creates difficulties for readers who rely on alternative presentations of material (in other colors, text sizes, fonts, or in non-visual formats, i.e., audio or Braille) or who simply want to access the material on a device not the size of a printed page (e.g., on a smartphone or small e-reader).
