Data Science for SMEs and Freelancers

Did you know that your data is the new oil? If you have a database, you have a goldmine. This book will show you how to turn that data into a growth engine for your business, using real-world examples that prove data science is within reach for any SME or freelancer willing to unlock its potential. Forget complicated programming tutorials or endless lines of code. Instead, this book takes you on a practical journey, full of examples you can visualize and apply directly to your reality.
Businesses that have learned to leverage their data are making a difference: anticipating customer needs, optimizing processes, and making smarter decisions. You’ll learn how to do the same, from sales forecasting to personalizing marketing campaigns, all with an accessible and pragmatic approach that makes your data your greatest competitive advantage, regardless of your company’s size.
The idea is simple: leave assumptions behind and base every action on concrete facts and patterns. You’ll discover how data analysis, automation, and machine learning can transform your business—whether it’s a small local shop or a growing medium-sized enterprise. This isn’t about abstract theories or empty promises. Here, you’ll find examples and cases you can adapt and apply to your operations to increase revenue, optimize resources, and better understand your customers.
What can you expect from this book?

• Practical applications of data science: Explore examples ranging from sales forecasting to customer segmentation, always focused on real-life situations for small businesses.
• Accessible tools for any business: You don’t need to be a programming expert to use tools like Python or interactive dashboards. Learn how to make the most of what’s already available to you to turn data into actionable decisions.
• The power of artificial intelligence: Discover how AI is now accessible for SMEs and freelancers, enabling everything from personalized offers to inventory optimization.
• A practical, no-nonsense approach: Skip the unnecessary technical jargon and focus on strategies you can apply to your business.

Why is this book important?
Because every piece of data matters. Every customer walking through your door, every transaction, every inquiry is a source of information that, if used wisely, can make a significant difference. My goal is to help you understand how to turn that data into a strategic ally for your business. This is not about empty promises or overwhelming you with unattainable formulas—this is about bringing data science into your daily operations in a clear and accessible way.
Who should read this book?
This book is for SMEs, freelancers, and entrepreneurs looking to improve their businesses and understand how data science can be a powerful tool for smarter decision-making. If you’re interested in maximizing your resources, refining your strategies, and discovering new opportunities through your data, this book is for you.
About the Author
I’m Rubén Maestre, a data science, artificial intelligence, and digital marketing enthusiast. My experience working with SMEs, freelancers, and various industries has taught me the immense power of data. My mission is to show you how any business, with the right tools and mindset, can transform its reality through data analysis.