Don't leave the book to understand the book.
Visualible helps readers stay oriented in difficult, context-dense works by adding optional explanations of people, places, terms, references, and background — without changing the original text.
Preview the first 20 pages of every supported edition free. Explore the text, try the support, and decide what you want to keep reading.
The book remains primary. Visualible support appears only when readers need help staying with it.
Explore Visualible by use case
Choose the path that best matches how you read, teach, publish, or discover books.
What Visualible includes
Optional support that helps readers stay in the book instead of leaving it to search elsewhere.
Persons
Keep track of who matters in the book.
See optional in-book support for important people when they become relevant.
Places
Stay oriented in the world of the text.
Understand where action happens without leaving the page.
Terms
Understand important references and concepts.
Get help with names, ideas, institutions, social codes, and unfamiliar background.
Dictionary
Look up words instantly.
Get definitions without breaking your flow.
Recaps
Return without losing the thread.
Pick up where you left off with spoiler-safe context up to your current place.
Browse published supported editions in the Store. .
Trusted by readers, educators, and institutions seeking better ways to engage with complex texts.