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Python Programming
Write small Python programs while learning variables, collections, control flow, and functions.
18 lessons available
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Interview practice
Mastering Leet Code Algorithms
Recognize the patterns behind coding interview problems and practice explaining your solutions.
22 lessons available
For developers
Functional Programming with F#
Use immutable data, functions, and F# types to model problems and build maintainable software.
18 lessons available
For AI developers
2026 Modern AI Search & RAG Roadmap
Explore retrieval, search quality, grounded generation, and the evaluation of practical RAG systems.
38 lessons available
For .NET developers
ASP.NET with .NET 10
Explore ASP.NET Core APIs, request handling, data access, testing, and deployment with .NET 10.
17 lessons available
For developers
Agentic AI as a Part of Software Development
Explore agent workflows, context, evaluation, and the engineering practices needed to use AI in software development.
12 lessons available
For developers
Authentication & Identity Fundamentals (2026)
Understand authentication, federation, sessions, and authorization through modern identity systems.
5 lessons available
For Python developers
Building Real-Time Voice Agents from Scratch
Explore how voice agents listen, respond, and handle interruptions, with attention to latency and audio flow.
8 lessons available
For C# developers
C# Programming
Build a deeper understanding of C# types, memory, asynchronous code, and modern language features.
35 lessons available
For developers
Cache is King
Reason about cache placement, invalidation, consistency, and the failure modes behind apparently simple speedups.
16 lessons available
For developers
Debugging Under Pressure
Practice finding useful evidence, narrowing a fault, and choosing recovery actions during production incidents.
21 lessons available
For developers
Hermetic Builds
Understand reproducible builds, explicit inputs, and the hidden dependencies that make CI results unreliable.
18 lessons available
Learn Java
Java
Explore Java fundamentals, object-oriented design, collections, concurrency, and application development.
14 lessons available
For .NET developers
Kafka for .NET Developers 2026
Understand Kafka partitions, offsets, and delivery guarantees, then apply them to reliable .NET consumers.
9 lessons available
For AI developers
LLM as Judge: Reproducible Evaluation for LLM Systems
Explore how to evaluate LLM output, recognize judging biases, and combine model judgments with deterministic checks.
10 lessons available
Cloud engineering
Mastering AWS
Explore AWS infrastructure, networking, security, reliability, and the trade-offs behind cloud architecture.
27 lessons available
For .NET developers
Mastering Memory Management and Garbage Collection in .NET
Connect .NET garbage collection, allocation, ownership, and pooling to practical memory and performance decisions.
26 lessons available
For React developers
Mastering Relay
Understand Relay's data model, fragments, mutations, and pagination when building GraphQL applications.
32 lessons available
Pharmacy exam study
NAPLEX Mastery Roadmap (High-Yield + Weakness-Driven)
Review pharmacy concepts and calculations through the available lessons in this NAPLEX study path.
35 lessons available
For developers
Production Observability: From Signals to Root Cause (2026)
Connect logs, metrics, and traces to questions about system behavior and the causes of production failures.
21 lessons available
For web developers
React
Build your understanding of React components, state, effects, and data flow through focused lessons.
22 lessons available
For web developers
Real-Time Web: Streaming, Events, and Live Systems
Compare polling, server-sent events, and WebSockets, then explore the design of reliable live applications.
3 lessons available
For developers
Surviving as a Developer When Most Code Is Generated by AI
Develop the review, debugging, and design skills needed to understand and maintain AI-assisted code.
23 lessons available
Interview practice
System Design Interviews for Software Developers with Examples
Practice reasoning about system design, explaining trade-offs, and working through realistic interview scenarios.
18 lessons available
Dental Admission Test
The Dental Admission Test
Review science and reasoning concepts through the available lessons in this Dental Admission Test study path.
7 lessons available
Financial literacy
The Trading Stack
Examine investing and trading concepts, including risk, costs, market structure, and the evaluation of strategies.
9 lessons available
For JavaScript developers
TypeScript
Learn to describe your data with TypeScript and use the type system to make JavaScript code clearer.
19 lessons available
Bar exam study
U.S. Bar Exam
Explore the available legal subject lessons in this bar exam study path and revisit them through practice.
13 lessons available
Medical exam study
USMLE
Explore the available medical science lessons in this USMLE study path and practice the concepts they cover.
12 lessons available
For web developers
Web Security: The Modern Browser Model
Understand browser security boundaries, cross-origin requests, cookies, and the policies that protect web applications.
25 lessons available
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