Footnotes, endnotes or online notes?

[Susan Higginbotham]

I prefer footnotes; I'm a compulsive reference-checker and hate flipping back and forth to find the corresponding end notes. But I think publishers prefer end notes; they must be easier to format.

I've seen a few other books that offer notes online instead of in the book. I'm not fond of that practice at all, as it necessitates having both the book and some device on which to read the notes, but it's better than no notes at all.