You should consider listing the topics it helps you cover, I think it would be a great selling point and help convert visitors to buyers faster. I noticed one

You should consider listing the topics it helps you cover, I think it would be a great selling point and help convert visitors to buyers faster. I noticed one of the slides (not the 1st) contains a blurry phone image in the right corner with what I think might be some sort of table of contents: linked lists, trees, stacks & queues, etc. Perhaps to keep the description terse you could group the features using something like: 'the most important data structures, problem-solving heuristics and math'.