Trust

Advertising or sponsored content is identified as such

Rule 008

If the digital book is reserved or intended for a specific audience, that audience is mentioned.

Rule 011

The identity of the author or author, company or organization is indicated.

Rule 012

The registration number issued to companies or organizations after the registration procedures in force in their country is indicated.

Rule 016

The digital book indicates the address of the publishing house

Rule 019

If the digital book establishes one or more standards or references, a link is offered to each of them.

Rule 021

The label for each link describes its function or the nature of the content it points to.

Rule 040

Internal and external links are different.

Rule 045

Naming the proposed files for download identifies the content and origin of the files

Rule 050

All internal links to the digital book are valid

Rule 051

The date of publication or update of the content is made available in programmatic form

Rule 069

Of the information available about the book, the presence of non-textual content and the available alternative are indicated

Rule 084

Of the available information about the book, title, author or author, publishing house, cover, language and source are indicated

Rule 085