I started my DJ quite awhile ago. I cut my book apart and inserted each page into a plastic protector. As a block is completed, it is placed with the page. I attach the sashing and cornerstone to the top and left side as I go. I've completed over half the blocks and quite a few triangles, but I haven't worked on it in a long time (years).
The feature fabric for this block was purchased at Liberty of London.
My grand scheme is to assemble in sections (so I won't have to sew all those long seams). So even though I have lots of blocks completed, the largest section assembled is four blocks by two rows - A1/B1 thru A4/B4.
One of my blocks is very smart - it spent a year at the public library! I checked out 'Quilts from the Indiana Amish' by David Pottinger and took it with me to a DJ retreat in Shipshewanna. The next time I checked the book out (at least a year later), I found one of my blocks tucked inside the book. I know it was my block because it was sashed in my fabric. I wonder if someone found the block and left it for me to reclaim.