Blog
Guides, tutorials, and insights for professionals learning AI and code.
Excel to Python: A Practical Guide for Analysts
Python for business analysts, starting from Excel. The exact Pandas equivalents for VLOOKUP, SUMIF and pivot tables, plus a 6-week training plan.
Can Claude Transcribe Audio? Yes, With /voice
Yes, through the /voice command in Claude Code. How to set up the mic, when voice beats typing, and the one spoken instruction that fixes messy output.
Machine Learning Without a PhD: An Honest Take for Pros
Machine learning without a PhD is the norm, not the exception. What you actually need (scikit-learn, stats, evaluation) and what you can skip in 2026.
1-on-1 vs Courses: Which Actually Works for Adults
1-on-1 vs courses for learning Python and AI: an honest comparison from 200+ students. The 90% vs 3-15% completion rate gap, and who each format fits.
Learn Python Without a CS Degree: The Honest Take
You can learn Python without a CS degree. Most working Python developers don't have one. Here's what actually matters, from 200+ students taught.
What Are AI Agents and How Do They Work?
AI agents explained for beginners: the agent loop, tools, memory, and what actually ships in production vs what only works in demos in 2026.
The Sentence I Now Say in Every First AI Session
A product manager arrived with a notebook full of prompt templates and still got weak output. The one reframe I now teach in every first AI session.
Data Science for Career Changers: The Honest Path in 2026
Data science for career changers without the hype: prerequisites, the real stack, the honest 14 to 28 month timeline, and the path that actually finishes.
Claude Code for Non-Developers: I Built 100 Course Slides
Claude Code for non developers: how I built 100 course slides with zero design skill, the honest token cost, and what kept it from looking like slop.
Build Your First RAG App: A Practical Python Tutorial
Build your first RAG app in Python with Claude and Chroma. Load, chunk, embed, retrieve, generate. Complete tutorial with runnable code, May 2026 stack.
Python Learning Path for Professionals: The 4-Phase Plan
The four-phase Python learning path I teach working professionals: what to study, in what order, and what you can do by the end of each phase.
Composer 2.5 vs Opus 4.7: Which Should You Buy?
Composer 2.5 vs Opus 4.7 vs Codex, compared on benchmarks, price, and real student work. Which one fits how you actually code, updated August 2026.