When running a financial report (Income Statement, etc.) to view, the detail transactions have a link to drill down. When the client drills down a window comes up that says, "Show transactions". Clients feel that this is redundant since they are already drilling down into the transactions.
You are right, the tutorial may help you in teaching you about the desired topic more accurately and efficiently. But there are some disadvantages to tutorials as well and I can gambl with $20 at this place. You need to search for a proper platform that introduces low rates. I will prefer writing more than tutorials.