Chapter 1
Data Visualization Principles
Cognitive aspects of visualization (Preattentive attributes)
medium • 1 min read
Choosing the right chart type for data types
medium • 2 min read
Tufte's principles (Data-ink ratio, Lie factor)
medium • 3 min read
Color theory in data visualization
medium • 4 min read
Gestalt principles in dashboard design
medium • 5 min read
Chapter 2
Tableau Fundamentals
Connecting to data sources and data preparation in Tableau
medium • 1 min read
Dimensions versus Measures; Discrete versus Continuous fields
medium • 2 min read
Creating basic charts (Bar, Line, Pie, Maps)
medium • 3 min read
Sorting, Filtering, and Grouping data
medium • 4 min read
Calculated fields and logic statements in Tableau
medium • 5 min read
Chapter 3
Advanced Tableau
Table Calculations (Running total, % of total, Window functions)
medium • 1 min read
Level of Detail (LOD) expressions (FIXED, INCLUDE, EXCLUDE)
medium • 2 min read
Parameters and interactive controls
medium • 3 min read
Dual-axis charts and blended axes
medium • 4 min read
Building interactive Dashboards and Storyboards
medium • 5 min read
Chapter 4
Power BI Fundamentals
Power BI Desktop interface and Power Query Editor
medium • 1 min read
Connecting to data and performing ETL transformations
medium • 2 min read
Data modeling: Building relationships (Star schema)
medium • 3 min read
Creating basic visualizations and formatting
medium • 4 min read
Using slicers and cross-filtering
medium • 5 min read
Chapter 5
Advanced Power BI and DAX
Introduction to Data Analysis Expressions (DAX)
medium • 1 min read
Calculated Columns vs Measures in Power BI
medium • 2 min read
Important DAX functions (CALCULATE, FILTER, Time Intelligence)
medium • 3 min read
Publishing to Power BI Service and sharing reports
medium • 4 min read
Row-Level Security (RLS) implementation
medium • 5 min read