Since,
Interesting question, will some of these books be writable because there might be a market for it. Like the Ligonier Workbooks
Robert,
I never thought about this, but happen to have bought a textbook containing fill-in assignments this weekend. It is writable!
One may copy and paste text in/from the box.
would be nice to see them get the ligonier workbooks
Great and Drats - I tried last night with a PB and had no success.