Founding price through August 31, then $59.
One Google Sheet with 193 auto-graded exercises across 9 modules and 4 capstone projects. You type every formula yourself and the Sheet checks it the moment you press Enter. Wrong answers get a reason, not a red X.
Includes 7 bonus practice workbooks with 204 extra exercises, a cheat sheet tab, and a certificate that unlocks at 100%. It all lives in your own Google Drive: no login, no subscription, nothing expires.
30-day money back guarantee. Reply to any email and I refund you, no questions.