Re: Cracks in wooden table top
No being able to see the table, I am guessing he glued the strips down on a plywood base. Probably because they are to thin for a table top and much of it has shrunk. While I generally don't like to criticize other peoples work, I would be ashamed to have something like that come out of my shop.
The top needs to be think enough to support on its own and fastened in a way to allow for expansion and contraction movement. I don't think there is much that can be done to salvage it.
Be sure you live your life, because you are a long time dead.-Scottish Proverb