What Is Data Science? A Complete Beginner's Guide for 2027
What data science actually is, what a data scientist does all day, the skills you need, and a practical roadmap for beginners in India.
Articles on Data science
Plain-language guides to AI, machine learning, LLMs, full-stack development and tech careers in India, reviewed by the Careers Ninza mentor team.
Best AI and Data Science Courses in India (2027): What to Actually Look For
Ten practical criteria for comparing AI and data science courses in India, so you can judge any course, including ours.
Python for AI and Data Science: What You Actually Need to Know First
Which Python topics to learn first for AI and data science, the libraries that matter, and a simple plan to practise them.
Data Science, Machine Learning or AI Engineering: Which Career Path Fits You?
Three AI career paths compared by daily work and skills, plus a quick self-check to see which one fits you.
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About the blog
Who writes the Program Zero blog?
Articles are written and reviewed by the Careers Ninza mentor team — working engineers who teach Program Zero live.
Is the blog free to read?
Yes. Every article is free. Program Zero membership is only needed for the live classes, recordings, projects and tests.
How do I go from reading to actually learning these skills?
Program Zero teaches everything covered on this blog live over 18 months, starting 9 January 2027. See the full curriculum or book your seat.