One of the things I did when I started, well after a few and not accurate, was I made a square the size of each round, to make sure that I was making it right. I think I had 3 or 4 rounds. It really kept me correct and also let me fix a spot that wasn't right, before it got worse because the problem just keeps multiplying as you go out. Accuracy is really important. But it is a real easy block. I would suggest doing one first without a lot of rounds. Maybe 3-4 to start. Maybe make some practice ones first without the thought of putting them into a quilt. Make them out of scraps and use them for mug rugs. This is a good way to see that your seams are accurate and that you like doing the pattern. Also if you have a pattern that has the cut size of each log, all the better, because if the next log doesn't fit then something is wrong.