Before I saw your reply I began fiddling with the file again. It no longer exported at all, so I deleted the image, deciding to upload it again and start over. At this point I am unable to find the button to insert the image. I’ve done it before, though I have no idea how I managed to do it. It was far from simple!
I’ve poured over the instructions in the User Guide, Chapter 70. My interface does not look like that one. I have only one image in my library, and when I click on it to select it, the Edit Image window opens. The panel on the right includes many more options below the attachment display settings, and it does not include an alignment option. Perhaps I’m using an updated version. At any rate, the only options are to view attachment page, edit image, or delete permanently.
I’ve looked at the text edit view and see no tracks of the image. It’s all straight text. However, I suspect some code lurks somewhere that things the image is still in the document, so I’m only able to update it, not insert it. I did upload it again, and I deleted the original version.
At this point, since the document is only one page and lots of things seem to be messed up, I’m going to delete the entire project and start over. Hopefully that will set things straight.
I am excited about PressBooks, which my library system has subscribed to, and determined to learn so I can coach others. I’ve self-published many books and know how to do all this stuff with my eyes shut in Word. I’ll figure it out, and I’ll probably be back. Thank you for being here!