Jude RajiBusiness intelligence, made clear.
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The First 30

Blog

Notes on data

Insights, tutorials and thoughts on data analysis and visualisation.

8 May 2025 · 8 min read

DataCo Supply Chain Analytics

Unlocking insights for a logistics company using Data Analysis

Case study · Power BI · Supply chain

28 January 2025 · 4 min read

Spotify Wrapped: My Submission for Maven Music Challenge (Jan 2025)

A Nostalgic Journey

Case study · Power BI · Music

10 January 2025 · 6 min read

Hotel Booking Analysis: Understanding Guest Cancellations

Key insights into cancellation trends and their contributing factors

Case study · Power BI · Hospitality

6 November 2024 · 5 min read

Uncovering Pharmaceutical Sales Trends: A Power BI Analysis of Drug Demand in Serbia

Demand patterns across drug classes in the Serbian pharmaceutical market.

Case study · Power BI · Healthcare

12 September 2024 · 5 min read

Exploratory Data Analysis of EA Sports FC 24

A Data-Driven Look into Football's Top Players and Leagues

Case study · Power BI · Sports analytics

8 September 2024 · 6 min read

Maven Cafe Card Rewards Program Report

Driving Customer Engagement Through Data

Case study · Power BI · Marketing analytics

25 August 2024 · 9 min read

Analyzing a Fitness Company's Financial Position

My submission for the Onyx Data August 2024 Challenge

Case study · Power BI · Financial analysis

20 May 2024 · 4 min read

My Submission for Maven Rail Challenge

Rail Transport Dashboard: Data Analysis of SwiftRail Transport

Case study · Power BI · Transport

12 May 2024 · 5 min read

Optimizing Power Query for Performance: A Case Study of my Maven Pizza Sales Dashboard

How I optimized my Pizza Sales Power BI Dashboard using Power Query to improve performance and user experience.

Power BI · Power Query · Performance Optimization

6 May 2024 · 5 min read

Education for All Donation Report: Unlocking Donor Insights

Donor insights to improve fundraising for educational access.

Case study · Power BI · Non-profit

15 April 2023 · 1 min read

Understanding Data Visualization Techniques

Learn how to choose the right visualization techniques for different types of data and business questions.

Data Visualization · Best Practices

22 March 2023 · 1 min read

SQL for Data Analysis: Beyond the Basics

Advanced SQL techniques that every data analyst should know to level up their data querying skills.

SQL · Data Analysis

10 February 2023 · 2 min read

Building Interactive Dashboards with Power BI

A step-by-step guide to creating interactive and insightful dashboards using Microsoft Power BI.

Power BI · Dashboards

5 January 2023 · 2 min read

Data Cleaning Techniques with Python

Essential techniques for cleaning and preparing your data for analysis using Python libraries.

Python · Data Cleaning

12 December 2022 · 2 min read

Effective Data Storytelling

How to craft compelling narratives with your data to drive decision-making and engagement.

Data Storytelling · Communication · Visualization

8 November 2022 · 3 min read

Introduction to Machine Learning for Data Analysts

A beginner-friendly guide to understanding and implementing basic machine learning models.

Machine Learning · Python

5 October 2022 · 2 min read

Data Storytelling in the Hospitality Industry

How to use data visualization to improve hotel operations and guest experience.

Hospitality · Data Storytelling · Analytics

15 September 2022 · 3 min read

Healthcare Data Analytics: Trends and Opportunities

Exploring how data analytics is transforming the healthcare and pharmaceutical industries.

Healthcare · Data Analytics · Pharmaceuticals

Jude Raji
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