Number theory courses can help you learn prime numbers, divisibility rules, modular arithmetic, and integer properties. You can build skills in problem-solving, logical reasoning, and algorithmic thinking, that support tackling complex mathematical challenges. Many courses introduce tools like Python for implementing algorithms and mathematical software for exploring number patterns, enabling you to apply your knowledge in practical situations such as cryptography and coding theory.

Skills you'll gain: Search Engine Optimization, Consumer Behaviour, Marketing, Web Analytics and SEO, Marketing Strategies, Digital Advertising, Keyword Research, Digital Marketing, Marketing Effectiveness, Advertising, Brand Strategy, Market Analysis, Goal Setting
Mixed · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Threat Modeling, Secure Coding, Application Security, Blockchain, Scripting, Vulnerability Assessments, Scalability, Application Design, Payment Systems, Transaction Processing, Cryptography, FinTech, Emerging Technologies
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Database Design, SQL, Database Management Systems, NoSQL, Database Development, Relational Databases, Data Warehousing, Database Theory, Database Systems, Database Administration, Databases, Database Architecture and Administration, Database Software, Database Management, Data Modeling, Query Languages, MongoDB, Big Data, Data Architecture, Database Application
Build toward a degree
Beginner · Specialization · 3 - 6 Months

University of Minnesota
Skills you'll gain: UI/UX Research, User Research, Design Research, User Interface (UI), User Interface (UI) Design, Usability Testing, Prototyping, Usability, User Experience, User Centered Design, Graphic and Visual Design, Ideation, Web Content Accessibility Guidelines, Design, Peer Review, User Experience Design, Human Computer Interaction, Interaction Design, Qualitative Research, Mockups
Intermediate · Specialization · 3 - 6 Months

Stanford University
Skills you'll gain: Pharmacology, Infection Control, Pharmacotherapy, Medical Prescription, Hospital Medicine, Microbiology, Infectious Diseases, Clinical Practices, Public Health, Long Term Care
Advanced · Course · 1 - 3 Months

Skills you'll gain: User Experience Design, Usability, User Experience, User Interface and User Experience (UI/UX) Design, Threat Modeling, UI/UX Strategy, Interaction Design, Application Security, Authentications, Human Centered Design, Security Strategy, Usability Testing, Authorization (Computing), Security Controls, Multi-Factor Authentication, Security Awareness, Computer Security Awareness Training, Cybersecurity, Safety Standards, Information Privacy
Intermediate · Course · 1 - 3 Months

AI CERTs
Skills you'll gain: Application Deployment, Application Programming Interface (API), Application Security, Software Development Tools, Blockchain, Application Development, Systems Integration, Cryptography, Solution Architecture, Scripting, FinTech, Emerging Technologies, Scalability
Advanced · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, Google Gemini, ChatGPT, Responsible AI, Content Creation, Digital Marketing, Marketing Strategies, Keyword Research, Generative AI, Search Engine Optimization, Digital Content, Social Media Content, Email Marketing, Artificial Intelligence, Copywriting, Target Audience
Beginner · Course · 1 - 4 Weeks

American Museum of Natural History
Skills you'll gain: Environment, Systems Thinking, Environmental Science, Natural Resource Management, Environmental Resource Management, Biology, Sustainable Development, Environmental Engineering and Restoration, Case Studies, Mathematical Modeling
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Git (Version Control System), GitHub, Version Control, Collaborative Software, Web Applications, Open Source Technology, Command-Line Interface, DevOps
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, ChatGPT, Generative AI, OpenAI, Multimodal Prompts, LLM Application, AI Product Strategy, Marketing Strategies, Productivity Software, Creative Design, Marketing Automation, Responsible AI, Natural Language Processing, Application Programming Interface (API), A/B Testing, Time Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Design Thinking, Customer experience strategy (CX), Agile Product Development, Product Strategy, Product Management, User Research, Service Design, Value Propositions, Product Roadmaps, Customer Insights, User Story, Innovation, Market Opportunities, Customer Retention, Growth Strategies, Market Analysis
Intermediate · Course · 1 - 3 Months