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+* POWER BI Journey
+
+This repository contains Power BI projects developed as part of the
+course [[https://www.udemy.com/course/microsoft-power-bi-up-running-with-power-bi-desktop/][Microsoft Power BI Desktop for Business Intelligence]].
+
+** I Learned
+
+I will divide what I learned based on the same course structure:
+
+*** Data Preparation & Transformation
+
+- Used *Power Query Editor* for cleaning and shaping data.
+- And Learned:
+  - *Pivoting & Unpivoting* data.
+  - *Merging & Appending Queries* for combining datasets.
+  - Creating *parameters* for flexible source switching (i.e. from dev
+    to prod).
+  - Managing *query refresh strategies*.
+
+*** Data Modelling
+
+- Designed *star and snowflake schemas* with fact and dimension
+  tables.
+- Built *hierarchies* for drill-down analysis.
+- Applied *best practices* for efficient and scalable models.
+
+*** DAX (Data Analysis Expressions)
+
+- Created *calculated columns* and *measures* for advanced analytics.
+- Implemented:
+  - *Filter context manipulation* with CALCULATE, FILTER, and ALL.
+  - *Iterator functions (X functions)* for row-by-row aggregation.
+  - *Time Intelligence functions* for comparisons.
+  - *Conditional logic* (IF, SWITCH, HASONEVALUE).
+- Organized measures into *dedicated measure tables* for clarity.
+
+*** Visualization & Reporting
+
+- Built interactive reports with:
+  - *Drill-through filters*.
+  - *Custom slicer panels* using bookmarks.
+  - *Numeric range parameters* for dynamic what-if analysis.
+  - *Custom tooltips*.
+- Applied *data visualization best practices* for clarity.
+- Managed *row-level security roles* for user-based access.
+
+
+** Repository Structure
+
+In the course, the project in the [[AdventureWorks][AdventureWorks]] folder, was made
+following along with the course lectures. The project in the Maven
+Market folder was made entirely by me.
+
+
+*** AdventureWorks
+
+AdventureWorks is a fictional sport store, that asked us to create a
+report to keep track and to analyze their metrics (such as orders,
+customers, profit, returns, rates, etc.)
+
+There are 4 main dashboards: the *Exec Dashboard* which includes a
+high-level overview of the most important metrics, *map* which
+displays a map with the countries where there are registered sales,
+the *product detail* which displays information about one single
+porduct, and the customer detail, which shows information about
+customers.
+
+This is how they look:
+
+**** Exec Dashboard
+
+[[file:Screenshots/AdventureWorks/Exec Dashboard 1.png]]
+
+That is how the exec dashboard looks like without filters, there are
+KPI cards on the top, revenue trending with Power BI's prediction, and
+some other pieces of information.
+
+This dashboard has a slicer panel, that opens when the filter icon is
+actioned:
+
+[[file:Screenshots/AdventureWorks/Exec Dashboard 2.png]]
+
+Which can also be closed using the /Back/ arrow (this was achieved
+using bookmarks).
+
+Then, we move to the *Map* page which might be the simplest of all the
+pages in this report, as it only shows a map with bubbles (the
+biggest, the more sales):
+
+[[file:Screenshots/AdventureWorks/Map 1.png]]
+
+There's also the *Product Detail* page:
+
+[[file:Screenshots/AdventureWorks/Product Detail 1.png]]
+
+Which is a drill-through page (we can drill-through the Matrix on the
+Exec Dashboard page that display the products by right-clicking on
+them).
+
+[[file:Screenshots/AdventureWorks/Customer Detail 1.png]]
+
+
+*** MavenMarket
+
+WIP