Tutorials & Field Notes
The Blog
Practical posts on data, AI, automation and decision making.
Business Skills
How to Build a Team Data & AI Roadmap (Template + Examples)
A one-page template for a team data and AI roadmap — outcomes, capabilities, quarters, risks — with a worked example for a mid-size B2B team.
Jun 17, 2026
Business Skills
Diogo Alves de Resende Udemy Courses Review: Are They Worth It?
An honest review of Diogo Alves de Resende's 25+ Udemy courses on data, AI, forecasting, no-code and decision science — what works, where they fall short, and who they're for.
Jun 17, 2026
Business Skills
How to Lead an AI-Driven Team: The Manager's Playbook for 2026
A practical manager's playbook for leading a team that uses AI for half its work — operating rhythms, policies, skill-building, and the mistakes that derail rollouts.
Jun 17, 2026
Business Skills
The 7 Best Forecasting Methods for Business (With When to Use Each)
Seven forecasting methods that cover almost every business situation — what each assumes, where it fails, and a one-screen guide for choosing between them.
Jun 17, 2026
AI & Machine Learning
No-Code AI vs Python for Business: Which Should You Learn First?
The honest comparison of no-code AI vs Python for business — when each wins, what they cost, and the hybrid path most pros end up on.
Jun 17, 2026
AI & Machine Learning
The 10 Best AI Tools for Business Analysts in 2026
The 10 AI tools worth a business analyst's time in 2026, ranked by productivity gain and time-to-value — picked from what we actually recommend in our cohort programs.
Jun 17, 2026
AI & Machine Learning
12 Prompt Engineering Techniques That Actually Work in 2026
Forget the folklore. Twelve prompt engineering techniques rooted in how modern LLMs really behave — with examples, templates, and a method that beats every list of tricks.
Jun 17, 2026
AI & Machine Learning
What Is Retrieval-Augmented Generation? RAG Explained for Business
RAG, explained without the jargon. What retrieval-augmented generation is, how it works step by step, when to use it, and the 5 mistakes that ruin most RAG projects.
Jun 17, 2026
Data Analysis
Python Forecasting for Beginners: A Complete Step-by-Step Guide
Forecast a time series in Python without the textbook. A clear, hands-on walkthrough using pandas, statsmodels, and Prophet — with the code you can copy.
Jun 17, 2026
AI & Machine Learning
The 10 Best No-Code AI Tools for Business in 2026
A practical guide to the 10 no-code AI tools we actually recommend to business professionals in 2026 — what each is best for, what it costs, and where it falls short.
Jun 17, 2026
AI & Machine Learning
LangGraph AI Agents: The Ultimate Guide to Building Multi-Agent Workflows with LangChain
When you’re exploring the world of LangGraph AI Agents, you’re stepping into the fast lane of building powerful, flexible, and interactive AI systems. This guide is all about making that path fun, clear, and jargon-free. Let’s roll up our sleeves…
Jun 17, 2026
AI & Machine Learning
OpenAI Agents SDK Crash Course: Build a Wine-Loving Chatbot and More
OpenAI Agents SDK pops into your dev life like a friendly genie, and in this guide I show you how to rub the lamp, conjure an agent, and make it recommend wines before politely calling the boss when someone asks for the
Jun 17, 2026
AI & Machine Learning
RAG Course: Learn Retrieval-Augmented Generation the Fun Way
Heads-up: The next 5 000-ish words are my love letter to the phrase “rag
Jun 17, 2026
Data Analysis
Time Series Analysis That Finally Makes Sense
I love time series analysis because it turns raw dates and numbers into living
Jun 17, 2026
Data Analysis
Exponential Smoothing Demystified: Forecasting Time Series Like A Fortune-Teller
Exponential smoothing sits at the heart of modern time-series forecasting, and you will master it by the end of this fun
Jun 17, 2026
Data Analysis
ARIMA Python: End-to-End Time Series Forecasting Guide
Learn how to move from raw time-stamped data to business-ready forecasts using the ARIMA family of models in
Jun 17, 2026