🔰 Data Analyst Roadmap 2026

├── 🗃 Introduction to Data Analysis
│ ├── Role overview & career paths
│ ├── Key skills: SQL, Excel, storytelling
│ └── Tools ecosystem (Colab, Tableau Public)

├── 📊 Excel Mastery (Formulas, Pivots)
│ ├── VLOOKUP, INDEX-MATCH, XLOOKUP
│ ├── PivotTables, slicers, Power Query
│ ├── Charts & conditional formatting
│ └── ETL basics in spreadsheets

├── 🔍 SQL for Analytics (Joins, Aggregates)
│ ├── Advanced SELECT with WHERE, GROUP BY
│ ├── JOINS (INNER, LEFT, window functions)
│ └── Performance: indexes, EXPLAIN plans

├── 📈 Visualization Principles (Charts, Dashboards)
│ ├── Chart types (bar, line, heatmaps)
│ ├── Design rules (avoid chart junk)
│ └── Color theory & accessibility

├── 🐍 Python Basics (Pandas, NumPy)
│ ├── DataFrames: load, clean, merge
│ ├── Grouping, pivoting, NumPy arrays
│ └── Jupyter notebooks & stats intro

├── 🔢 Statistics Fundamentals (Averages, Tests)
│ ├── Descriptive (mean, median, distributions)
│ ├── Hypothesis testing (t-tests, chi-square)
│ └── A/B testing & confidence intervals

├── 🛠 Tableau/Power BI Essentials
│ ├── Tableau: calculated fields, LOD
│ ├── Power BI: DAX, data modeling
│ └── Interactive dashboards & storytelling

├── 🤖 AI Tools for Insights (Prompts, AutoML)
│ ├── Prompt engineering for SQL/viz
│ ├── Tableau Einstein, Power BI Copilot
│ └── AutoML basics (no-code modeling)

├── ☁️ Cloud Platforms (BigQuery Basics)
│ ├── BigQuery SQL & massive datasets
│ ├── AWS QuickSight, Snowflake intro
│ └── Free tier cost optimization

├── 📊 Data Storytelling Frameworks
│ ├── Pyramid Principle for reports
│ ├── KPI dashboards & executive summaries
│ └── Narrative structure (context-insight-action)

├── 🔗 ETL Pipelines Intro (dbt, Airflow)
│ ├── Data transformation with dbt
│ ├── Orchestration (Airflow basics)
│ └── No-code: Zapier automation

├── 💼 Portfolio & Interview Prep
│ ├── 3-5 projects (sales, churn analysis)
│ ├── Kaggle datasets & GitHub portfolio
│ └── STAR method, mock interviews

└── 🧪 Real-world Challenges (Kaggle, Cases)
├── E-commerce churn prediction
├── Marketing ROI analysis
├── Supply chain optimization
└── LeetCode SQL, case studies

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