My daily routine of my cortisol-relieving reading habit has adapted over the years from physical books, to a Kindle eReader or Fire tablet, to finally, the Kindle app on my iPad. But one thing ...

A more advanced format is KF8 (Kindle Fire 8), also known as AZW3. KF8 supports HTML5 and CSS3, which are Web standards that provide advanced font and layout formatting. Third-party software such ...