Decided it made sense 

to assemble this block this morning since the pieces were already cut out.

Then I set aside the Chain Link project "for a little while" (all the while hoping it doesn't morph into yet another UFO) in order to switch back to the Book Nerd blocks.

But after trimming the book "spines" to the correct size (according to the directions), I can see there is going to be an issue matching up with the front/back covers.  They SEEM to be too long, but I am not going to do any trimming until I can schedule another session with my marvelous tutor Mary.

So once again there's a change in the day's plans; it looks like I will be piecing more Chain Link blocks after all.