DC Universe might be a bit more popular than Pressbooks. We know about 4 links to it since March 2021 and only 3 links to Pressbooks. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Dcuniverseinfinite.com is where I started. Source: about 1 year ago
While I do highly recommend owning physical books, I'd like to point out that dcuniverseinfinite.com is a subscription service that has the entire DC Comics library in it. Source: over 2 years ago
While favebook, twitter and youtube are all accessible (although I've heard a lot of talk about banning youtube lately, dunno why tho, don't really care), I want to showcase another possibility: some resources are unavailable outside of %country_name%. dcuniverseinfinite.com, for example. I like 'Young Justice' show, but it's seems I can't legally watch 3+ season online outside US. Source: about 3 years ago
You can buy digital comics from Comixology.com, or if you are in the US, subscribe to dcuniverseinfinite.com and get access to a bunch of DC's library, including relatively recent comics too. Source: about 3 years ago
And see if your institution has a license for Pressbooks, which allows you to create your own multimedia book. Source: 10 months ago
I self published a history book with extensive maps. I prepared the manuscript online with Pressbooks https://pressbooks.com/, and published with Amazon's Kindle Direct Publishing https://kdp.amazon.com/en_US/. Very satisfied with both. The book grew out of my website http://ravensworthstory.org/. I briefly describe the process of preparing maps for the book here... Source: about 2 years ago
So, I am aware of Pressbooks, which uses Wordpress. Also, Booktype, which looks like a fairly complicated system to set up. Finally, I can think of Open Monograph Press, which takes the complication process even further. Source: almost 3 years ago
Marvel (Comics) API - Create awesome stuff with the world's greatest comic API
Time Capsule - Transform your 2020 into a tiny, personalized book for free!
GlobalComix - Professional Comics Publishing
Papermine - Create stunning digital booklets.
Comixology Unlimited - Netflix for comics and graphics novels by Amazon
Sigil - Sigil is a multi-platform WYSIWYG ebook editor. It is designed to edit books in ePub format.