813 courses · 33 domains · 38 careers
Open your Skillsto control your AI
Short, source-backed mini courses that map the whole IT landscape — so you can brief an AI properly, spot the answer that is confidently wrong, and see what a decision breaks three systems away.
Three ways in
- Know the subject you needJump into one of 33 domains, from Linux to FinOps.
- Know the job you want38 career maps break a role into the skills behind it.
- Know nothing yet — and that's fineRead a Hitchhiker's Guide first. Don't panic.
Every course is checked against primary sources and carries dated links out. Or follow a single skill across the catalog
The whole catalog, by subject
33 domains. 813 courses.
Each domain has its own page listing every course in it.
- Artificial intelligence and machine learning62courses
- Cloud native tools and technologies57courses
- Databases and data storage44courses
- Engineering leadership and delivery management44courses
- Web development43courses
- Data engineering and analytics40courses
- Software engineering40courses
- Cloud computing31courses
- Networking28courses
- Technical communication and collaboration26courses
- Computer architecture and hardware24courses
- Distributed systems, messaging, and integration24courses
- Infrastructure and operations24courses
- Linux23courses
- Offensive security and application security23courses
- Programming languages23courses
- Cybersecurity fundamentals and governance22courses
- Defensive security and security operations21courses
- DevOps and software delivery20courses
- Identity, access, and cryptography18courses
- IT service management and support18courses
- Platform engineering and SRE17courses
- Windows and Microsoft infrastructure17courses
- Computer fundamentals15courses
- Storage, backup, and data protection15courses
- Observability and performance14courses
- Virtualization, containers, and orchestration13courses
- Enterprise architecture and integration12courses
- FinOps, procurement, and technology economics12courses
- Operating systems12courses
- Mobile and client application development11courses
- Software supply chain security10courses
- Web servers, proxies, and traffic management10courses
No account, no paywall
Ten free courses to start with
One from each of ten different domains, out of 112 free courses in the catalog.
- Artificial intelligence and machine learningFeature EngineeringFree
- Programming languagesPython FundamentalsFree
- NetworkingDNS FundamentalsFree
- Computer architecture and hardwareEmbedded Hardware InterfacesFree
- Virtualization, containers, and orchestrationContainer FundamentalsFree
- Databases and data storageDatabase FundamentalsFree
- Distributed systems, messaging, and integrationDistributed Systems FundamentalsFree
- Mobile and client application developmentMobile Development FundamentalsFree
- Platform engineering and SREPlatform Engineering FundamentalsFree
- Technical communication and collaborationTechnical EditingFree
Reverse-engineer a role
All 38 careers, mapped to the skills behind them.
Pick a role and see the competencies it needs, which courses already cover them, and where the gaps still are.
- Backend Engineer9 skills
- Blockchain Developer7 skills
- Embedded/IoT Engineer9 skills
- Frontend Engineer9 skills
- Full-Stack Engineer8 skills
- Game Developer8 skills
- Mobile Engineer7 skills
- Quality Engineer7 skills
- Software Engineer8 skills
Each career page shows required skills, their importance, and which published courses cover them. Browse the skill map
- AI Engineer9 skills
- Analytics Engineer7 skills
- Data Analyst8 skills
- Data Engineer7 skills
- Data Scientist8 skills
- Database Administrator8 skills
- Machine Learning Engineer8 skills
Each career page shows required skills, their importance, and which published courses cover them. Browse the skill map
- Cloud Engineer9 skills
- DevOps Engineer7 skills
- Network Engineer8 skills
- Platform Engineer10 skills
- Site Reliability Engineer7 skills
- Solutions Architect8 skills
- Systems Administrator9 skills
Each career page shows required skills, their importance, and which published courses cover them. Browse the skill map
Each career page shows required skills, their importance, and which published courses cover them. Browse the skill map
- Business Analyst8 skills
- Developer Advocate7 skills
- Product Manager8 skills
- Technical Writer8 skills
- UX/UI Designer9 skills
Each career page shows required skills, their importance, and which published courses cover them. Browse the skill map
Each career page shows required skills, their importance, and which published courses cover them. Browse the skill map
- Chief Data Officer10 skills
- Chief Information Officer10 skills
- Chief Information Security Officer10 skills
- Chief Technology Officer10 skills
Each career page shows required skills, their importance, and which published courses cover them. Browse the skill map
Don't Panic
The Hitchhiker's Guides
38 comic, accurate guides to IT roles — six levels each, from the novice who has never touched a server to the guru who has touched far too many. Written like a travel guide that knows both the route and the potholes.
The same voice opens every course: a Don't Panic tab, free on all 813 of them, that tells you in two minutes what a technology is and whether it is your problem.
Read all 38 guidesStart with one of these
- Software EngineerWrites the code that has worked for fifteen years and must not be touched, then touches it.
- DevOps EngineerAutomates the path from laptop to production so no one has to hold their breath.
- Site Reliability EngineerTreats the pager as a small electronic device whose principal product is interrupted sleep.
- Data ScientistAsks the data a question and then argues with it about the answer.
- Security EngineerDesigns least privilege, a decision that is never the default and always the right answer.
- Product ManagerDecides what to build and why, then disappoints someone deliberately rather than accidentally.
- Technical WriterDocuments the API that changed but the example did not, in version control, where it can break the build.
- Chief Technology OfficerOwns the technology direction and defends it to a board that last touched a computer during a different administration.
Free, for anyone
Soft skills aren't just for IT.
35 lessons on communication, collaboration and self-awareness — outside the IT catalog and its career map entirely. Nothing to unlock.
Browse Soft SkillsKnow enough of the landscape to direct intelligence — artificial or human.
One subscription per discipline. Every course free to preview, 112 free end to end.