How to send an ePub ebook from your iPad or iPhone to your Amazon Kindle e-Reader

How I take Notes and make Highlights on a Kindle or Kobo e-Reader

In my EDC I also carry an old Victorinox Cybertool S Swiss Pocket Knife

Some tips about Calibre Software together with Kindle e-Readers

How to send and open PDF files on your Amazon Kindle e-Reader easily

This is bad: EU is forcing Apple to enable sideloading on iPhone & iPad in Europe