Dustin Harbin has been publishing his Diary Comics online on a more or less daily basis for some time, and Koyama Press has published the first three volumes, so this should come as no surprise: The publisher will release the fourth volume this fall. Here's the note that Ed Kanerva sent with the announcement:
Dustin Harbin's DIARY COMICS may have begun as a sketchbook exercise, and first seen print as a quotidian daily journal, but over their lifespan they've morphed into something more meaningful. They've become an exploration, not only of a person's life, but of their own changing perception of that life. While the comics are no longer a daily-style journal, they still meander through whatever is on Harbin's mind, warts and all, using the everyday events of his life to comment on the world and what it all might mean to one dumb cartoonist.
Of course you can read it all on Harbin's website, but there's a lot to be said for a nice collected edition in print.