Hope you are all doing well. I just noticed lately the little timer that is next to any particular bible... does that mean I'm on the clock here with bible reading? (grin). tc
That icon indicates reading progress along with the date that the resource was last read.
It's meant to be a graph representing which sections of the resource you have read (starting with the first page of a resource at "12 o'clock" on the circle and proceeding counterclockwise around the circle. If you switch to grid view in your library, you'll see a bar graph representing the same data.
I'm not sure how accurate the graph is. There are several books that I have read in their entirety and the graph doesn't indicate this.
However, I did read the resources on both my desktop and Kindle - maybe the graph only represents the Kindle?
Reading progress is a new feature and will not accurately represent what you've read before the feature was implemented. However, going forward it should become more meaningful.
Thanks.