Hi everyone! I’m a 3rd year student looking to break into data science. I know Python and basic stats but feel overwhelmed by where to go next. Could you share

1. A structured roadmap (topics, tools, projects)?

2. Best free/paid resources (MOOCs, books)?

3. How much SQL/ML is needed for entry-level roles? Thanks in advance!

4. Should I focus more on stats or coding first?

5. What projects would make my portfolio strong?

6. Are there any free/paid resources you recommend?

Hello, I'm looking for the best data science courses for beginners, all the way to intermediate/advanced levels, with Python. I have no problem with the course including AI/ML or any extra material. Websites like Udemy, Coursera, etc. No problem with paid courses.

Thank you for your help.

I worked as a web programmer in the past (PHP, Javascript, SQL).

Now I am a PhD student in Psychology.

I like Data Science very much and I am trying to learn Excel, R, Python, and Matlab, but to understand how these algorithms work I would also need some Math knowledge.

A few decades ago, I studied Calculus in high school which I have almost completely forgotten, but never Linear Algebra, and I passed a few exams in Statistics.

Since English is not my first language, what (video) course would you suggest to learn Data Science, including Calculus and Linear Algebra, which is not too complex to understand, not too long, and not very expensive?

Thank you very much!

Best Data Science Courses to Learn in 2025

1. Coursera – IBM Data Science Professional Certificate Great for absolute beginners who want a low-pressure intro. The course is well-organized and explains fundamentals like Python, SQL, and visualization tools well. However, it’s quite theoretical — there’s limited hands-on depth unless you supplement it with your own projects. Don’t expect job readiness from just completing this. That said, for ~$40/month, it’s a solid starting point if you're self-motivated and want flexibility.

2. Simplilearn – Post Graduate Program in Data Science (Purdue) Brand tie-ups like Purdue and IBM look great on paper, and the curriculum does cover a lot. I found the capstone project and mentor interactions helpful, but the batch sizes can get huge and support feels slow sometimes. It’s fairly expensive too. Might work better if you're looking for a more academic-style approach but be prepared to study outside the platform to truly gain confidence.

3. Intellipaat – Data Science & AI Program (with IIT-R) This one surprised me. The structure is beginner-friendly and offers a good mix of Python, ML, stats, and real-world projects. They push hands-on practice through assignments, and the weekend live classes are helpful if you’re working. You also get lifetime access and a strong community forum. Only drawback: a few live sessions felt rushed or a bit outdated. Still, one of the more job-focused courses out there if you stay active.

4. Udacity – Data Scientist Nanodegree Project-based and heavy on practicals, which is great if you already have some coding background. Their career support is decent and resume reviews helped. But the cost is steep (especially for Indian learners), and the content can feel overwhelming without some prior exposure. Best for people who already understand Python and want a challenge-driven path to level up.

Hi everyone, I am a software engineering and i work as a software developer and i wnat switch my domain in the Data Scientist field.  I have observed that many SD professionals have changed as well due to recent changes in the industry.

I am looking for the best data science courses that are well structured and that you actually found useful. So far i have been self learning on youtube and it is getting difficult and time consuming and does not cover the topics in detail and they dont offer project work too.

I want a course which has projects too as it would add value in my resume when i look for Data Science jobs. If anyone has taken a course or knows of one that would be useful, Id love to hear your suggestion I just want something practical and easy to follow

I’ve been thinking about getting into data science, but I’m not sure which course is actually worth taking. I want something that covers Python, statistics, and real-world projects so I can actually build a portfolio. I’m not trying to spend a fortune, but I do want something that’s structured enough to stay motivated and learn properly.

I checked out a few free YouTube tutorials, but they felt too scattered to really follow.

What’s the best data science course you’d recommend for someone trying to learn from scratch and actually get job-ready skills?

I am from a software development background. I need to change my domain to Data Scientist roles. Right now, many software development professionals are changing their domain to Data Science. Self-learning from YouTube, etc., is very difficult as it's not structured and it's not covering the topics in depth. Also, I heard that project work is also important to showcase in a resume to switch to Data Scientist roles.

So, I am looking for the Best Data Science Courses Paid ones which cover complete topics in depth with hands-on project work. I found some of them after searching like Upgrad , LogicMojo Data Science , GreatLearning, ExcelR data science etc.
Please share your recommendations if anyone has prepared from any such courses

Hey everyone,

I recently graduated with a degree in Data Science and I’m looking to strengthen my resume with some valuable certifications and courses. My main goal is to stand out in the industry and demonstrate practical skills that employers look for in data scientists, machine learning engineers, or AI specialists.

Would love to hear from experienced professionals!
👉 Which certifications helped you land a job?
👉 Are there any must-have courses that provide real-world skills?
👉 Should I focus more on AWS/GCP certifications or general ML/AI specializations?

Any advice would be greatly appreciated! Thanks in advance 🙌

Hey everyone,

I’m just starting out in Data Science and I feel a bit overwhelmed. There are so many resources, bootcamps, YouTube playlists, and courses out there that I don’t know where to begin.

My main goal is to build a solid foundation first and then go deeper into the more advanced stuff like machine learning. I’ve seen courses like the IBM Data Science Professional Certificate on Coursera, 365 Careers on Udemy, Krish Naik’s content, CampusX’s 100 Days of ML, and many more. But I’m not sure which ones are actually worth my time and will help me learn in-depth, not just surface-level.

If you’ve been in my position, where did you start? Which courses or learning paths actually helped you gain real skills and confidence as a beginner?

Any honest advice would mean a lot. Thanks!

Hi all, i am looking for the best data science couses and i did check for them on Analyst builder, simplilearn, cousea, udemy and other online platforms which offer courses. I even used youtube to learn and referred to articles, blogs however i found that difficult, time consuming and not structured and lacked depth, and i am not sure which course to take up now, although i went though the cirriculum and offering on multiple platforms. 

I would appreciate your recommendation on the courses i could take up, i am fine with free or paid options, i just want one which is structure, has skill and is project based, and one i can learn in my own pace. Thanks in advance.

Hello! I’ve recently picked up Angela’s 100 day bootcamp course, but I was wondering if there’s better alternatives for someone learning python for data analysis/engineering and not so much software creation?

Someone suggested freedodecamp to me, I had a look and it seems interesting!

Many thanks

I'm a beginner in data science, Can someone recommend some good Data Science courses?

Hi everyone, I was wondering if I could get any recommendations or suggestions on the best online course I can take to learn Python and Data Science? I've been a data analyst for 3 years now, dabbling into a little bit of machine learning on past projects but certainly not the bulk of my work. I worked with SAS for 2 years, and the past year I've been using SQL (although during my SAS time I used SQL through SAS).

I want to learn python, focused mostly on data analytics/science, so I'm looking for a course to take. I know there are plenty of free sources out there, but I need some structure to stay focused when I'm starting out. I took two intro Python courses about a year ago and have used it sparsely here and there, so I'm not a complete beginner but fairly new to it. I've looked at these two so far.

100 Days of Code: The Complete Python Pro Bootcamp for 2022. Looks good for learning Python, but it looks like there's a lot of web-development content.

Python for Data Science and Machine Learning Bootcamp. Looks like it covers a lot of the data science aspect, but maybe not as good for someone with only a little bit of Python experience.

I’m trying to figure out which learning platforms which are actually worth paying for or learning from, to build my skills as i want to become a data analyst. There are so many options available that it’s hard to know which ones offer practical, well-structured content.

I’m mainly looking for clear and specific recommendations, whether that’s a full learning program, individual high-quality courses with up to date contnet or even good YouTube channels, anything that truly helps build job ready data analyst skills

I’m open to both free and paid resources, and I’m also fine with using more than one platform (for example learning Excel from one place, SQL from another, data visualization tools like Power BI or Tableau elsewhere, and Python from a different source)

I’m looking for a complete data science course within Udemy (using python) where I’ll gain proficiency not only with some scikit but as well with tensorflow and statistic methods behind it. I’m really solid with data analysis and I want to step up the game within my work.

Do you recommend any? Many thanks for your help