I am starting a book shelf project with some Black Walnut. I have piece that I want to use for a shelf that includes a large knot. The surrounding area has nice grain that I want to feature. I usually finish my home built furniture with wood oil and coats of varnish.

In the past I have filled these with clear epoxy, and I am not sure I want to do that again. I was thinking of applying several coats of varnish, not trying to fill the knot completely.

Some pics of the wood. I plan to use the quarter sawn pieces for the top.

Would appreciate any ideas or experiences.