Frequently Asked Questions
If you have other questions, contact us.
Do I need prior BI experience?
No. Our beginner courses assume basic spreadsheet familiarity. You’ll learn SQL and visualization fundamentals before advanced topics.
Which tools do you cover?
Power BI, Tableau, SQL (PostgreSQL), modeling standards, and selective Python for analysis automation.
How much time should I plan weekly?
Most learners allocate 4–6 hours per week. Each course lists its total hours so you can plan your schedule.
Do you offer certificates?
Yes. A completion certificate is issued after passing project rubrics. It reflects skills practiced, not seat time.
Can my employer sponsor my enrollment?
Yes. We provide invoices and vendor documentation. Contact us to arrange group enrollment.
What is your refund policy?
If a course doesn’t fit your goals within seven days of purchase and you have not completed over 25% of content, we provide a full refund.
Are the courses self-paced?
Yes. You can learn asynchronously. Optional live office hours are available for Q&A.
Do you update course content?
We revise courses quarterly. Changelogs highlight improvements in clarity, exercises, and tool versions.
What datasets do we use?
Realistic retail, subscription, and operations datasets that reflect messy realities: nulls, late-arriving facts, and conflicting dimensions.