Pages appear to randomly get inserted into my spread--against my will.

[GreenThunderbolt]

I don't know why, but random pages are inserting themselves into my spread. Sometimes at the end of the spread, sometimes not. Recently, I deleted a text box, and three pages appeared. But it's happened for other reasons. 

[Dave Creamer of IDEAS]

Check your Type preferences:

[GreenThunderbolt]

Thanks Dave. I need to turn the Smart Text Reflow off, I'll bet. I'm new to laying out books, so I'll have more questions in the future. 

[Dave Creamer of IDEAS]

I don't think this is your issue but these Book settings can also insert blank pages:

[Peter Spier · Accepted solution]

You should also note the brackets around the numbers for spread 30-31. They indicate page shuffling for that spread is disabled which may or may not be what you intend.

[GreenThunderbolt]

Thanks. I hadn't even noticed those.