I assume that you are referring to logs in the wall of a log building. A 10 foot wide opening might or might not be significant. It depends on what exists above the opening. Do you carry any upper floor or roof loads down to this location? If so, you might need to add a new header to carry them across the opening. If not, the top log of the wall might span the opening easy enough. Of course, you want to be sure that you allow for additional shrinkage and settling of the wall when sizing and fitting the glass in the opening.
I don't think that you will find any books that address your particular situation. An engineer would use a variety of resources, including his/her professional experience and judgement, to determine what you need. I believe that for $100 or so, you should be able to find an engineer who can evaluate your situation, do a few load calculations and give you a reasonable solution.