Yes, I love them! I started with the 12th Captain Underpants book in 3rd or 2nd grade at the book fair they had every year during parent teacher conferences, which was twice a year, and then I got the 9th one (I’m not saying their actual titles because all of them are way too long lol) a while later. It was kind of confusing since both of them continued from where the one before it left off, so I decided I wanted to read all of the older ones. I don’t remember what order I got them in, but I do know that I’ve read all of them except for the 10th and 11th ones, and I actually have all of them in my bookshelf downstairs except for the 7th and 8th ones, which I bought on my dad’s tablet or Kindle (don’t remember which one) and read it there. I’m still curious as to what happened in the 10th and 11th ones.
When I heard that they were going to make Dog Man into an actual book series, I was hyped since it seemed like that would be really cool. I bought those whenever they came out since they would usually be at the book fair as well, and once I went to middle school and there wasn’t a book fair anymore, I would just order them. I have all of them up to Mothering Heights, and I think they have this one spin off book that seemed cute but I never got it. I really liked them. Petey was one of my favorite characters, so my favorite books were obviously the ones belonging to the arc where he gets a kid and slowly starts to become a good guy. It was really nice to see. I’m probably also going to watch the movie when it comes out.
I’ve also read that one book duology about kung fu cavemen and the one about superhero babies (it sounds so dumb saying this lol), but I don’t remember them as much.
So yes, I’m definitely familiar with Dav Pilkey.