The Library · Insights
Deep dives across data, automation & AI
162 in-depth articles — from Excel foundations to production machine learning. Filter by topic or difficulty to find exactly what you need.
Power BIExpert
Implementing Power BI Tenant-Level Scanner API and Metadata Harvesting to Build an Enterprise-Wide Data Catalog
Learn how to build a production-grade metadata harvesting pipeline using the Power BI Scanner API — scanning every workspace in your tenant, normalizing the results into a relational catalog, and surfacing cross-workspace governance intelligence in a Power BI report. This lesson takes you from service principal setup through incremental scheduling and compliance reporting.
30 min read
Power BIFoundation
DAX Ratio and Share Measures: Calculating Percent of Total, Percent of Parent, and Contribution Margins with ALLSELECTED and ALLEXCEPT
Learn how to build percent of total, percent of parent, and contribution margin measures in DAX using ALL, ALLSELECTED, and ALLEXCEPT. This hands-on lesson explains the filter context logic behind every ratio calculation and shows you how to make denominators respond correctly to user slicers, hierarchies, and matrix visuals.
16 min read
Power BIExpert
Designing Effective Report Layouts in Power BI Desktop: Canvas Size, Visual Alignment, and Responsive Design for Professional Dashboards
Most Power BI reports look functional but feel amateur — not because the data is wrong, but because the layout is undisciplined. This lesson teaches you how to design professional report pages from first principles: canvas size selection, pixel-grid alignment systems, visual hierarchy control, and the real mechanics of Power BI's responsive behavior.
30 min read
Power BIPractitioner
Implementing Power BI Deployment Pipeline Rules and Parameterized Data Source Overrides to Automate Environment-Specific Configuration
Manual configuration changes during Power BI deployments are a reliability risk. Learn how to combine deployment pipeline rules with parameterized data sources so your datasets automatically reconfigure themselves across Dev, Test, and Production — with no manual editing required.
21 min read
Power BIExpert
DAX Basket Analysis Patterns: Building Market Basket, Product Affinity, and Cross-Sell Measures with INTERSECT and EXCEPT
Master DAX basket analysis by building market basket co-occurrence counts, association rule metrics (support, confidence, lift), and cross-sell gap measures using INTERSECT and EXCEPT. A complete, expert-level lesson with realistic retail examples and production performance guidance.
25 min read
Power BIPractitioner
Building Your First KPI Card and Summary Table in Power BI Desktop: Measures, Formatting, and Layout for Executive Dashboards
Learn how to build production-ready KPI cards and summary tables in Power BI Desktop that executives actually want to use. This lesson covers DAX measure design, card formatting, conditional formatting for tables, and layout principles drawn from real dashboard design practice.
22 min read
Power BIFoundation
Implementing Power BI Dataflow Linked and Computed Entities to Centralize Reusable Transformation Logic Across Enterprise Workspaces
Stop duplicating transformation logic across fifteen team workspaces. Learn how to build a foundation dataflow layer using linked and computed entities, so your enterprise's Customer, Product, and Sales logic is defined once and reused everywhere — consistently, efficiently, and without touching your source systems more than necessary.
17 min read
Power BIPractitioner
DAX ABC Classification with Dynamic Thresholds: Building Pareto-Based Segmentation Measures Using RANKX and Cumulative Percentage Logic
Learn how to build a fully dynamic ABC classification system in DAX that ranks products or customers by revenue contribution, computes cumulative Pareto percentages, and assigns tier labels that update in real time as filters and thresholds change. This lesson covers the complete pattern from RANKX through cumulative logic to dynamic threshold parameters — including performance trade-offs for large catalogs.
19 min read
Power BIFoundation
Formatting and Customizing Your First Power BI Dashboard: Titles, Colors, and Layout Best Practices
Your visuals are built — now make them actually look professional. This lesson walks you through every formatting decision that separates a rough draft from a polished Power BI dashboard, from writing better titles to building a consistent color palette and mastering layout hierarchy.
19 min read
Power BIFoundation
DAX Conditional Aggregation: Using CALCULATE with Multiple Filters to Build Segment-Level KPIs in Power BI
Learn how to use CALCULATE with multiple filter arguments to build segment-level KPIs in Power BI. This lesson walks you through stacking Boolean and table filters to conditionally aggregate data by tier, region, category, and more — with realistic examples and common mistakes explained.
14 min read
Power BIExpert
Implementing Power BI External Data Sharing to Securely Distribute Live Semantic Models to External Partners and Business-to-Business Consumers Without Exporting Data
Learn how to configure Power BI External Data Sharing to give external partners governed, live access to your semantic models — without exporting data, managing guest identities, or losing control of your security model. This deep-dive covers architecture, RLS design for cross-tenant identity, capacity planning, and the full operational lifecycle.
29 min read
Power BIExpert
DAX Many-to-Many Bridge Patterns with Bidirectional Filtering: Building Accurate Allocation, Attribution, and Shared Dimension Measures Across Complex Schemas
Most Power BI developers hit a wall when they encounter true many-to-many relationships — the kind where deals have multiple reps, campaigns target multiple products, and costs must be split across departments. This lesson teaches you the bridge table patterns, TREATAS-based virtual relationships, and weighted allocation measures that make these schemas work correctly under any combination of filters.
28 min read