Long-form image descriptions that make your most complex visuals fully accessible.
From long-form descriptions of multi-part diagrams to MathML and LaTeX encoding for mathematical content and bulk delivery for large content libraries, Margo Learning writes image descriptions detailed enough to explain what a short alt-text cannot, backed by a 25,000+ SME network with subject expertise across every academic discipline and industry domain.
25,000+ Subject Matter Experts
MathML & LaTeX Encoding
WCAG 2.1 AA Compliant
Bulk Delivery at Scale
The Challenge
Some images can't be explained in one sentence, and forcing them into one fails the learner.
A multi-part process flowchart in a corporate compliance training. A crop yield infographic in an agricultural skilling programme. A chemical structural formula in a higher education chemistry course. A complex statistical graph with multiple data series. These images carry more meaning than a short alt-text can hold, and a mathematical equation needs to be vocalised correctly by a screen reader, not just described in passing.
Margo Learning writes long-form image descriptions and encodes mathematical content for educational material of every complexity, backed by a 25,000+ SME network who understand the subject matter as well as the accessibility requirement.
What We Deliver
Image descriptions detailed and precise enough to match the content they explain.
Long-Form Image Descriptions
Detailed long-form descriptions for complex multi-part diagrams, data visualisations, process maps, and historical or scientific images where a short alt-text cannot convey all the necessary information for a visually impaired learner.
MathML & LaTeX Encoding
Mathematical expression encoding in MathML for screen reader compatibility with LaTeX description alternatives for platforms that do not support MathML ensuring mathematical content is accurately vocalised by assistive technologies.
Bulk Image Description Delivery
High-volume image description writing for educational publishers, EdTech platforms, and universities with thousands of complex images requiring long-form description, using AI-assisted drafting for structure combined with SME human review for technical accuracy.
Who We Work With
Built for every organisation whose most complex visuals need to be fully understood.
STEM Publishers & EdTech Platforms
Writing long-form descriptions for complex scientific, mathematical, and engineering diagrams across large educational content libraries.
Universities & Academic Publishers
Providing long-form descriptions for visually rich academic content including multi-part graphs, charts, maps, and scientific illustrations.
Test Prep Platforms
Encoding mathematical equations and describing multi-part scientific figures in JEE, NEET, and other competitive exam content.
Corporate L&D & Compliance Teams
Writing long-form descriptions for detailed infographics, process diagrams, and data visualisations in corporate training and onboarding content.
K-12 Publishers & Curriculum Developers
Writing long-form descriptions for complex STEM diagrams and multi-part illustrations across digital K-12 curricula.
STEM Subjects We Cover
AI Advantage
AI speed. SME accuracy. The best of both.
Margo Learning uses AI to structure first-draft long-form descriptions at scale, while every complex STEM and technical image description is reviewed by a subject matter expert before delivery.
- AI-assisted first-draft structuring for long-form descriptions at scale.
- SME human review for all complex STEM and technical image descriptions.
- Automated image classification to identify which images require long-form treatment.
- AI-powered context extraction from surrounding content for contextually appropriate descriptions.
- Automated WCAG compliance checking for description completeness.
Frequently Asked Questions
Common questions.
Alt-text is a short text alternative, typically one to two sentences, that conveys the essential meaning of a simple image. A long description is used for complex images where a short alt-text cannot convey all necessary information, such as detailed graphs, multi-part diagrams, or data tables presented as images. We provide both, selecting the appropriate approach based on the complexity of each image.
Get Started
Ready to make your most complex visuals fully accessible?
Tell us about your image description needs and let's explore how Margo Learning can help you write long-form descriptions and encode mathematical content accurately across your learning library, however complex the subject matter.