With MathML epubs can look decent. For example take a look at the sample MathML epub "A First Course In Linear Algebra" [0] (in a reader that supports MathML of

With MathML epubs can look decent. For example take a look at the sample MathML epub "A First Course In Linear Algebra" [0] (in a reader that supports MathML of course). It looks pretty good. The problem is Amazon STILL doesn't support MathML, so publishers just churn out a gross version where all the equations are images and so then it doesn't scale properly with the text and the book becomes 300+ MB because of it. And they can't be bothered to make two versions for readers like Kobo that do support MathML. [0]: https://github.com/IDPF/epub3-samples/releases/download/20170606/linear-algebra.epub https://github.com/IDPF/epub3-samples/releases/download/2017...