CreateSpace, Kindle Direct, & IngramSpark are Print On Demand companies where you can self-publish e-books or print books.
CreateSpace requires a PDF file for print books, so you could write in Word & then convert to PDF. If you have a lot of images & tricky formatting, Word works, but make sure you use Styles for consistency & smaller file size. I don't know if Word can convert to high quality PDF file because I have the Adobe Suite & Word works with Acrobat to convert to a high quality PDF file.
Another option is Adobe's InDesign. It converts to high quality PDF for print. You can purchase a monthly subscription & it probably has a free trial offer, too. There are a lot of video tutorials out there to teach you how to use it.
Scrivener is a popular author software package & if you are writing in it, it also converts to PDF, although I'm not sure it has high quality options, which you'd want with images.
E-books come in an assortment of file formats. Calibre is the software I used to convert my Word doc to an e-book format. Calibre can convert to most of the popular e-book formats. The e-book was trickier. Some of the formats looked much better than others and all of them needed tinkering to make them look as good as my original file.
Are you going to print in color? Is your goal to make money or to share helpful info? Knowing what you want to do will determine some of your choices.
InDesign
Calibre
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