Data Analytics Notes
(Google Sheets · SQL · Python · Apps Script)

Intro

These are my structured notes from learning data analytics using Google Sheets, SQL, Python, and Apps Script.
Built from real practice to understand how data actually works.

Built from real practice while developing my own system — read how I approached learning data analytics while building my own app → here

Start Here

Learn Python fundamentals before applying automation and data workflows.

Google Sheets

(Data & Automation)

Core tools I use daily to clean, structure, and automate data workflows.

• QUERY function

• Named ranges

• Dropdown logic

• Data 1,

• Apps Script 1,

SQL

Foundations for querying, filtering, and organizing structured data.

• SELECT

• WHERE

• ORDER BY

Python

Building logic, automation, and data handling from scratch.

• Strings 1, 2, 3, 4, 5, 6, 7, 8,

• Lists 1, 2, 3, 4, 5, 6,

• Loops 1, 2, 3, 4, 5, 6,

• Pivot 1,

Pinterest Pages: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40

Why this page exists

I’m building the Belle app myself.
This page documents everything I learn—clearly, in one place.

Download the Belle App -> Here

How to use this page

Start with Python basics, then move into Google Sheets and SQL.
Each section builds on the previous.