RE: virtual pages is it a best practice?

Hi Jason,

I tried that approach at Wiley briefly. The feedback I got from users was fairly negative. People are used to the concept of a "page" and didn't adapt well to thinking about paragraphs. It is possible that locators are ranges would work in the future, but change is hard. The page has been around for hundreds of years.


Tzviya Siegman
Information Standards Lead

From: White, Jason J <>
Sent: Thursday, May 16, 2019 12:58 PM
To: George Kerscher <>; W3C EPUB 3 Community Group <>
Subject: RE: virtual pages is it a best practice?

In the absence of a physical medium such as a print or braille page, I think we should look toward alternative means of reference (for example, "chapter 1, section 2, paragraph 3"). We should provide navigational support within reading tools to support these references.

From: George Kerscher <<>>
Sent: Thursday, May 16, 2019 11:46 AM
To: W3C EPUB 3 Community Group <<>>
Subject: virtual pages is it a best practice?

Hi EPUB 3 folks,

We have brought up the practice of including virtual pages before. The go to page function in titles that have a print equivalent  is fabulous, but what if there is no print version?

A quick check of character of documents I have handy shows that there is approximately 2k of characters on a page. I would think that a best practice of placing a page break indicator between block items closest to that 2k count would work well. Of course, this cannot be a requirement, but I wonder about publishing it as a best practice. IMO it would help in figuring out how large a title is.

Thoughts welcome.

Happy GAAD

George Kerscher Ph.D.
-In our Information Age, access to information is a fundamental human right.
Chief Innovations Officer, DAISY Consortium
Senior Advisor, Global Literacy, Benetech
President, International Digital Publishing Forum (IDPF)
Member of the National Museum and Library Services  Board (IMLS)
Chair Steering Council Web Accessibility Initiative (WAI), a division of the W3C
Phone: +1 406/549-4687
Cell:+1 406/544-2466


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Received on Thursday, 16 May 2019 17:06:30 UTC