Post Internet and digital devices era, the font type, font size and background color have assumed new importance.
For last 20 years, self-publishing has been spreading fast and wide, because this process gives many opportunities to emerging writers to get published on time and get recognition. Particularly self-publishing platforms like Amazon’s Kindle Store and others have changed the publishing profession for ever. There has been a surge in the number of published authors worldwide. And that is for good. Several authors have gone to win awards and recognition and many others have become celebrities in shorter time span.
However, many authors are making great mistakes by not paying attention to readability factors that influence the readers. In the age of Internet and spread of usage of digital devices, the number of readers who used to read books in paperback format has drastically decreased worldwide. Young people prefer to read books on digital devices than in paperback format. Given such facts, the font type, font size and background color of your book have assumed new importance.
Authors must use font types, font size and page background color more carefully to prepare the book retina ready. A book with larger font size on white background outstands cool to the eyes of the readers and hence would increase readability.
1 Use serif typefaces for body text. Serif typefaces are the fonts that have end strokes or leads. Most common typefaces are: Times New Roman, Bookman Old Style, Cambria, Georgia.
2 Use sans serif typefaces for all large titles such as headings, topics and sections. Sans serif typefaces are the fonts that don’t have end strokes or leads. Most common typefaces are: Arial, Calibri, Tahoma, Open Sans, Verdana.
I would recommend a little larger font size even for body text. For example, it is better to use Times New Roman in 14 size than in 12. It will improve readability. Small font sizes strain eyes and can lower readability.
Traditionally, book publishers have used cream papers. Smaller font size on cream color pages lowers readability. It is advisable to use white paper instead. Even if you use smaller font size on white papers, the body text will look fine. But use larger font size any way on white page.