What is an eBook?

 
In order to create an eBook...
WHY DON'T YOU EVALUATE DESIGNS ALREADY MADE?
 
Have a look to the CONCLUSIONS I've come to of what determine a good e-textbook.
  
Flecha, Derecho, Cara, Gracioso, Expresiones, Azul
"Flecha-cara-gracioso". Image by Nemo, taken from Pixabay. License CC0 Public Domain

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