I compiled 4 cheat sheets into 1 PDF and put it on Gumroad

6 months ago I started a self-directed data science program (Excel → SQL → Python → Power BI → ML).

One thing that slowed me down: constantly switching between tabs to look up syntax.

So I built a 12-page PDF with 4 cheat sheets I actually use daily:

- Pandas (groupby, merge, pivot, datetime)

- SQL (joins, CTEs, window functions)

- Scikit-learn (pipelines, GridSearch, evaluation)

- Statistics (t-tests, ANOVA, confidence intervals)

Launched on Gumroad at $12. No sales yet — just put it up today.

Would love feedback on the landing page or anything I should add: https://deepanshu647.gumroad.com/l/shcxrw