I enjoyed the first volume of Charles Soule and Alberto Jiménez Alburquerque's Oni Press comic Letter 44 (I read it shortly after it came out, I think as part of a Humble Bundle of e-comics). I rarely buy comics these days, so I kept looking for it on another Humble Bundle, or on the public library Hoopla service. No dice, so I was happy to see it on sale on Comixology last week for $1.99 per volume. I bought volumes 2-6, and read volume 2 over the weekend. I found it surprisingly easy to dive back into the story after a five-year gap. I plan to read a volume a week until I'm finished, and am looking forward to seeing it through to the end.
I just dug Letter 44 out of the pile of "I really should finish reading this series." I never made it to the end, but I was grabbed by the beginning. However, the art is hard on the eyes.