yBook 1.4.83 

yBook takes plain text or HTML files and displays the contents as if they were printed in a book. You get two pages side by side with generous margins and a clean, uncluttered interface. You can click the pages to turn them - no more panning, scrolling or zooming. You can also change the typeface and resize the fonts from 8 to 24 points and STILL get two pages on the screen at once.