Remediating backlist ebooks with accessibility in mind

What does it take to level up an ebook's accessibility? What if it's an EPUB 2 made with the best intentions five, six, or 10 years ago? Bring your oldest, dirtiest EPUBs to this workshop to learn how to fix your backlist bestsellers, to shine them up to a newer EPUB specification and ready for the diverse needs of a broad spectrum of readers.