What font are you using for what type of book?

[JSWolf]

I use ChareInk for the type of eBooks that have words.

[fduniho]

In general, I favor Bookerly the most, and that's what I installed on my Kindle DX after jailbreaking it. But I keep a variety of different fonts on my Touch, Paperwhite 4, and Likebook Mars, and I use different fonts every now and then, though I don't strictly assign any to particular genres. One of my favorite fonts, particularly for novels in Moon+ Reader, is Lora. This is a good-looking transitional serif font with capitals and numerals that align well, thanks to generally fitting in a rectangular area that doesn't overlap with other characters or descend below the baseline. The tail of the Q might go down a little bit, but it doesn't go underneath other characters.

Amasis30, which came on my Nook, is a compact slab serif that resembles Bookerly. I have found it good for reading non-fiction on my Paperwhite. Malabar, which also came on my Nook, is one that I favored on my Kindle Touch, because it tended to be bolder and bigger than other fonts. But since my Paperwhite 4 lets me control levels of boldness, and Moon+ Reader gives me more fine-tuned control over font size, its advantages are not as important on these devices. When I try it out on my Likebook Mars, I usually go back to Lora. Literata looks good, but I usually favor Bookerly over it.

Moon+ Reader Pro comes with a font called Calluna, which is very nice, but I use it only with that app.

I sometimes use Tex Gyre Schola or FreeSerif for non-fiction. The former is based on Century Schoolbook, which was designed for school books, and the latter is my favorite Times New Roman alternative. I also recently used constan in Moon+ Reader for non-fiction. I also sometimes use EB Garamond.

When a book has a Publisher font, I usually use that if it is legible enough. If it's sans-serif, though, I usually find something to replace it. I rarely use sans-serif, but I have read some science fiction using the Ubuntu font.

[Larla]

I know everybody hates this font but I love Comic Sans. I have it set as the main font in Windows and on my Android tablet and, of course, in Moon+ Reader where I read all of my e-books.

[Uncle Robin]

Originally Posted by Larla

I know everybody hates this font but I love Comic Sans.

I don't hate it, in fact I've long wondered why so many do, and why they hate it with the sort of ferocious passion that should reserved for truly unconscionable moral aberrations, like decaffeinated coffee. Then again, I don't get the widespread fixation on ligatures either, so I'm clearly font blind. But at least you're not alone.

[nashira]

Originally Posted by Uncle Robin

I don't hate it, in fact I've long wondered why so many do, and why they hate it with the sort of ferocious passion that should reserved for truly unconscionable moral aberrations, like decaffeinated coffee. Then again, I don't get the widespread fixation on ligatures either, so I'm clearly font blind. But at least you're not alone.

Generally people hate it because it shows up in the weirdest places. It is a decent font for those who are dyslexic, though, even if I think it's ugly so eh. Ugly is fine as long as its legible to the target demographic.

[JSWolf]

Originally Posted by nashira

Generally people hate it because it shows up in the weirdest places. It is a decent font for those who are dyslexic, though, even if I think it's ugly so eh. Ugly is fine as long as its legible to the target demographic.

But one thing you can try for someone who is dyslexic is different colors. I know someone who finds green text on a black background helps in readability.

[DNSB]

Originally Posted by nashira

Generally people hate it because it shows up in the weirdest places. It is a decent font for those who are dyslexic, though, even if I think it's ugly so eh. Ugly is fine as long as its legible to the target demographic.

Having looked at several items about Comic Sans a few months back, it appears that most of Comic Sans reputation as being good for dyslexics is an urban myth based mostly on recommendations by British Dyslexia Association. There is little support from any scientific studies.

One study to look at might be Good Fonts for Dyslexia. While Comic Sans is not mentioned, it does qualify as a san-serif font.

Looking at several other studies, it would appear that most of the "dyslexic" fonts show no real advantage for most dyslexic readers. All too often, the results came down to what font the reader is most comfortable reading with.

[AccidentallyLazy]

Capita by Hoftype. It looks very much like Bookerly, however has improved (to me) ligatures for glyphs such as 'Th' 'ff' 'fl' 'fi' 'fj' etc.

[trekk]

Originally Posted by AccidentallyLazy

Capita by Hoftype.

I use Bookerly most of the time. I'd prefer Capita over Bookerly, because the ligatures are indeed beautiful, but it's 43 EURO for each individual style, so Bookerly it is

[CWatkinsNash]

I've been using Volkhov for everything since I downloaded it.

[ps67]

I recently discovered Egyptian Slate Pro, from Cufonts. I like it very much and its design is suitable to workaround the lack of ligatures in Kepub and AZW3. Good also on Epub on Kobo (but I still use Bookerly more often) and on Pocketbook (where I use it). To use it on Kobo You need to rename the files as usual.
With KFX it doesn't look good. And also with Koreader it is not rendered well, especially on my Kobo.

[kandwo]

I use Bookerly on my Paperwhite and have for a couple of weeks used some built-in serif font in my Onyx and Hisense devices. I really prefer the aesthetics of serif fonts, but seem to read sans fonts much faster.

Is there any research on reading speed and comprehension using serif vs. sans?

[NiMa]

Originally Posted by kandwo

I use Bookerly on my Paperwhite and have for a couple of weeks used some built-in serif font in my Onyx and Hisense devices. I really prefer the aesthetics of serif fonts, but seem to read sans fonts much faster.

Is there any research on reading speed and comprehension using serif vs. sans?

That is a good example of what strange of a font some people made: https://sansforgetica.rmit.edu.au
it comes with a bit of explanation also

[Quoth]

Originally Posted by kandwo

Is there any research on reading speed and comprehension using serif vs. sans?

It seems to depend on:

1. Font Size. Sans can work well for headings.
2. Resolution of display / paper print. Sans is better on say a 5 x 7 dot cell than serif! At high resolutions, the sans looses that advantage.
3. What people are used to reading. If they read lots of novels they may find serif better. If they read loads of Sans web pages, then Sans.

Note that eink panels are poorer apparent resolution than a full range CRT, Plasma, LCD, OLED of similar resolution because they have black, white and 14 shades. Also no clever font enhancement that LCD or OLED does using RGB so called subpixel addressing.

The cheaper 6" and old DXG are about 160 dpi yet look worse than 133 dpi LCD. Some larger panels are 267 dpi, approx, much much better. Most 5" eink are the same number of pixels as 6" basic panel, thus serif looks better as the actual dpi is higher.
Really the 267 and 300 dpi panels are the minimum for relaxed reading at a normal printed font size. You'd want maybe higher resolution for same quality as decent mass market or pocket book paper book set in the smallest fonts. Some of those now are too poorly printed.

Short answer:
There is no conclusive answer.
There is also no evidence that the Open Dyslexic font is any help. I read that and tested a Dyslexic young woman. She thought regular sized Georgia was best and found Open Dyslexic really hard to read. She'd never seen an ereader and was very taken with it. Especially being able to make the text a little larger than typical in books.

[Uncle Robin]

I think it was @JSWolf who made and/or modified the ChareInk font available here, and it has become my goto Roman font on my Kobo, absolutely love it!