Practical knowledge, thoughtfully collected

From “it depends”
to what comes next.

Interactive guides, courses, and decision tools for making sense of data and AI—and putting it to work.

Collected by Tarek AtwanAuthor, educator & data and AI consultant

Selected from the collection

The collection

GenAI basics · Decision tool

GenAI Foundations Navigator

Beginner-friendly tour of GenAI basics: grounding, RAG components, prompt engineering and core parameters.

10–15 min
Modeling · Decision tool

Algorithm Selector

Interactive decision tree for finding the right ML algorithm for your problem and data.

15 min
Features · Decision tool

Feature Engineering Playbook

Encoding, scaling, outliers, feature creation and selection across tabular, text, time-series and image data.

20 min
Evaluation · Decision tool

Metric Decision Tree

Choose the right evaluation metric for classification, regression and beyond.

20 min
Data platform · Course

Data Engineering Foundations

Vendor-neutral course through modern data engineering, from source systems to trusted decisions.

10 modules
AWS AIF-C01 · Exam prep

AWS AI Practitioner Guide

Study guide with flashcards and quizzes for the AWS Certified AI Practitioner exam.

30–45 min
AWS AIF-C01 · Exam prep

AIF-C01 Practice Exam

Timed practice exams, 114 questions across all 5 AIF-C01 domains.

30–60 min
Diagrams · Exam prep

Visual References

Diagrams for confusion matrices, RAG pipelines and the LLM lifecycle.

10 min
AWS AIP-C01 · Exam prep

AIP-C01 Prep Hub

6 interactive tools for the AWS AI Practitioner (Generative AI) exam.

6 tools
Microsoft Fabric · Exam prep

DP-700 Study Guide

Study guide for the Microsoft Fabric Data Engineering Associate exam.

45 min
Product strategy · Decision tool

AI Opportunity Scorer

Evaluate AI opportunities across 6 value dimensions for a Build, Buy, Experiment or Kill verdict.

10 min
AI landscape · Decision tool

AI Solution Navigator

Navigate from business problem to solution across rules, ML, deep learning, GenAI, agents and OR.

10 min
LLM optimization · Decision tool

GenAI Technique Selector

Choose the right LLM optimization: RAG, fine-tuning, LoRA, quantization and more.

25 min
LLM metrics · Decision tool

FM Evaluation Metrics

Choose LLM evaluation metrics: perplexity, ROUGE, BERTScore, RAGAS, LLM-as-judge.

20 min
RAG · Course

RAG Academy

Interactive course on Retrieval-Augmented Generation concepts, architectures and deployment.

Course
NLP · Course

Applied NLP — CSE 8803

Weekly study notes on NLP fundamentals from Georgia Tech OMSA, with live demos.

7 weeks
Power BI PL-300 · Exam prep

PL-300 Exam Prep

140 practice questions, timed exams, study guide and final review for Power BI PL-300.

30–100 min

Follow a learning path

A little structure for the next step

Behind the collection

Knowledge shaped by practice.

These resources grew out of questions from workshops, classrooms, and consulting engagements—the kind where the useful answer is understanding exactly what a decision depends on.

I’m Tarek Atwan, an author, educator, and data and AI consultant. I write and teach at tarekatwan.com and consult through Ensemble Methods.

Collection updated 2026-11