Functionalities when reading or listning

Customize your reading and listening experience, chapter divisions and bookmarks.

• How do I change the background color?
• How do I change the narrator's voice?
• How do I control the speech speed?
• Is it possible to train my reading speed in Biblio?
• Use the sleep timer when listening to an audiobook
• Why can't I expand the size of the font? 
• How do I enable the "Reading Aid"?
• How do I control the brightness on the screen?
• How do I go to another chapter in the book?
• How to create a bookmark and note while reading