I tried high yield histo and found it to be too much, but it is probably the best of what is out there. I was actually suprised at how many histo pictures were on it. Or maybe it just seemed like it because I had a hard time with them.
Im not sure what is truely the best to correlate with the test and filters out the rest.
If you are only going to spend a little time it may be best to look at some histology slides either in an atlas or a program. This should also help you for pathology by seeing what normal looks like. 🙂