Inside Data Science
Tiffany TeasleyData scientist and AI developer. After 20 years teaching high school math, I moved into data science in my 40s. I failed interviews, overspent on courses, and chased the wrong skills. I share what’s working so you can get interviews and offers.
| Platform |  | Pricing | Only free issues | Publishes | Twice weekly |
|---|---|---|---|---|---|
| Issues | 28 | Founded | 2 years ago | Last Issue | 7 days ago |
| Active | |||||
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datasistah.substack.comLatest Issues
The 5 Questions I Ask Before I Write Any Code
My first data science project was an earthquake dashboard.
Public data. Clean charts. Filters that worked. I sat back and looked at it and thought, that looks like something a data scientist would make.
It did look like that.
It also did...
1 in 5 Data Science Jobs Now Ask for LLMs
There is a specific feeling that comes from reading a job posting for a role you thought you were qualified for.
You get through the first 3 lines and you are fine. Python. SQL. Cloud platforms. You have done all of that.
Then you hit a l...
The Data Science Interview Stopped Being About the Model
Years ago I sat down for my first data science interview and got asked whether I knew BERT.
I did not.
That was the end of it. I did not get the job. I followed up with that same hiring manager anyway. Much later, I earned the role I had...
The Free Data + AI Starter Library
The best data and AI education in 2026 is free.
That’s not a hot take.
It’s just true, and most beginners don’t believe it yet.
The real problem isn’t access. It’s direction. There are so many free courses that most people freeze. They...
I Recorded My First LinkedIn Course
I spent 20 years at the front of a high school classroom, and then I started completely over in data science. So there is something I still cannot fully wrap my head around about standing in a recording studio in Carpinteria, California, fi...
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| Subscribers | Engagement | 70 | Monthly Web Visits | ||
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Full Time Data Scientist & AI Engineer | Linkedin [In]structor | After 20 years teaching high school math, I moved into data science in my 40s. I share what I learned the hard way so you don’t have to.
Inside Data Science | Admin Community updates, roundtable details, and subscriber support.
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