Cheat Sheets
Visual references you can actually use — the concepts that matter, distilled to a page.
ML & Data Science
Pandas Data Cleaning — One-Liners
The vectorized one-liners that replace loops of manual cleaning.
Agentic AI
Agentic Design Patterns
Memory, planning, tool use — the building blocks of production agents.
ML & Data Science
Prompt Engineering Reference
System prompts, few-shot, and structured output at a glance.