Technology · 2 min read

What Makes a Book "Readable Online"? Our Technical Standards

Putting a book online is easy. Making it genuinely readable — comfortable, navigable, accessible — is harder. Here are our standards.

The Minimum Is Not Enough

You can put a book online by dumping text into an HTML page. That's not readable. That's a wall of text.

Making a book genuinely readable online requires solving several problems simultaneously: typography, navigation, accessibility, performance, and comfort.

Our Standards

Typography

  • Serif font (Georgia / system serif) for body text — research consistently shows serif fonts improve sustained reading
  • 1.8 line height — generous spacing reduces eye strain
  • 65-75 character line length — the optimal range for reading comprehension
  • Left-aligned text (not justified) — avoids the "rivers of white space" problem on screen

Navigation

  • Table of contents with chapter links
  • Previous / Next chapter navigation at top and bottom
  • Reading progress bar showing position in book
  • Keyboard navigation (arrow keys for prev/next)
  • "Back to book" link on every chapter page

Reading Controls

  • Font size adjustment (small, medium, large)
  • Color modes: Light (white background), Sepia (warm), Dark (dark background with light text)
  • Controls persist across sessions via localStorage

Performance

  • Each chapter is a separate static HTML page — no JavaScript required to render text
  • Typical page load: under 200ms on broadband
  • No tracking scripts, no analytics, no third-party requests on reader pages
  • Works offline once cached (static HTML)

Accessibility

  • Semantic HTML: proper heading hierarchy, paragraph tags, blockquote for dialogue
  • Readable at 200% zoom without horizontal scrolling
  • Screen reader compatible (tested with VoiceOver)
  • Sufficient color contrast in all three color modes

Metadata

  • Book schema (JSON-LD) on every chapter page
  • Chapter schema linking to parent book
  • Open Graph and Twitter Card meta for social sharing
  • Canonical URLs for each chapter

The Result

68 books, 1,352 chapters, all meeting these standards. Every chapter is a separate, fast-loading, comfortable reading page.

Try it: atharvainamdar.com/works

— The Book Nexus Technology

The Book Nexus

Independent Publisher, Pune, India

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