Each person will have one post in the thread which they are able to change as they read.
The post title will be the title and author of the book.
Once the book has gone the title of the post will change to ............. Indicating that There is no book to offer currently while the book is read having been requested or the post owner takes a break.
Once read and onto the next one the owner of the post will change the title to whichever book that is.
That way Each offer will only take up one line of the thread since Individuals will be editing the same post each time.
For my post I will post in the body of the text which one went where.(just for my own amusement😀)