I just wanted to tell you how grateful I am for what you’ve done with this website. I’m a student athlete, and I go to school entirely online because of my training schedule. I have maths as my subject which I found really tough, but I have to teach myself the material with the textbook as my only complete resource. On the rare occasion I have time to work with a tutor, they are rarely able to help me understand. I love learning and school, but I’ve always struggled in science so I was sure this year was going to be brutal. Thanks to you, as it was a nightmare to complete my Maths assignments & Homework that used to waste loads of time. I can watch one PDF’s, followed along, and understand the rest of my assignment no problem. Again, your work is much appreciated. I bought a yearly plan within a few minutes of finding your site.