"One of the first determinations to be made when selecting a typeface for text is serif or sans? This decision should be based on several key points regarding the project at hand. Once made, your typeface search will be narrowed down considerably.
Although serifs are considered to be decorative, their appearance may well serve a higher purpose. Serif typefaces have historically been credited with increasing both the readability and reading speed of long passages of text because they help the eye travel across a line, especially if lines are long or have relatively open word spacing (as with some justified type).
Others dispute this viewpoint, asserting that what we read most (serif text), we read best. This might very well account for the popularity and dominance of serif typefaces in the U.S. for lengthy text in print, including books and newspapers. That said, the fact remains that many sans serif typefaces exist that are more legible at any size than some serif designs. So whichever style you choose, take note of the particular characteristics and overall legibility of the design, including specific weights and roman vs. italic."
This is what Fonts.com had to say on the matter.
I think Serif is more pleasing to the eye while also sticking to the most basic writing size where all letters are easily recognisable for kids and adults. I also had people read the same text in the same layout and size but different fonts(Sans-Serif and Serif), they all read the Serif text faster than the Sans-Serif text. They also said that they think the Serif font looks better and is a classic which is used in many books.
