Data Structures and Algorithms courses can help you learn about arrays, linked lists, trees, and graph structures, along with sorting and searching algorithms. You can build skills in problem-solving, optimizing code efficiency, and analyzing algorithm complexity. Many courses introduce tools like Python, Java, or C++ for implementing these concepts, as well as platforms for coding challenges that reinforce your understanding through practical application.

Skills you'll gain: SAS (Software), Data Manipulation, Data Import/Export, Data Cleansing, Data Analysis, Data Validation, Statistical Programming, Microsoft Excel, Data Processing, Exploratory Data Analysis, Data Transformation, Data Preprocessing, Descriptive Statistics
★ 4.8 (142) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: IT Infrastructure, Operating System Administration, Computer Security, Information Systems Security, IT Security Architecture, Computer Networking, Desktop Support, Systems Administration, Network Troubleshooting, Remote Access Systems, Network Security, OSI Models, Hardening, Application Security, Package and Software Management, Cloud Management, Disaster Recovery, TCP/IP, Computer Hardware, Technical Support and Services
★ 4.9 (18K) · Beginner · Professional Certificate · 3 - 6 Months

University of Geneva
Skills you'll gain: General Science and Research, Scientific Methods, Experimentation, Physical Science, Research, Science and Research, Quantitative Research, Physics, Mathematical Modeling, Mechanics
★ 4.7 (38) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: iOS Development, Mobile Development, Apple iOS, User Interface (UI), Apple Xcode, Swift Programming, Unit Testing, User Interface (UI) Design, Objective-C (Programming Language), User Interface and User Experience (UI/UX) Design, UI Components, Mobile Development Tools, Data Structures, Application Development, Interactive Design, Programming Principles, Test Case, Cross Platform Development, Application Programming Interface (API), Prototyping
★ 4.6 (1.3K) · Beginner · Specialization · 3 - 6 Months

Universidade de São Paulo
Skills you'll gain: Network Analysis, Social Network Analysis, Data Visualization, Scientific Visualization, Graphing, Graph Theory, Exploratory Data Analysis, Environmental Science, R (Software), Data Analysis, Descriptive Statistics, R Programming, Data Science
★ 5 (37) · Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Prompt Engineering, Responsive Web Design, Node.JS, Command-Line Interface, TypeScript, Unit Testing, SQL, HTML and CSS, Web Content Accessibility Guidelines, Typography, Cascading Style Sheets (CSS), React.js, User Interface and User Experience (UI/UX) Design, Hypertext Markup Language (HTML), JavaScript Frameworks, JSON, Generative AI, Database Design, UI Components, Web Development
★ 4.6 (917) · Beginner · Specialization · 3 - 6 Months

Politecnico di Milano
Skills you'll gain: Architectural Design, Building Design, Art History, Architecture and Construction, Aesthetics, European History, Design Elements And Principles, Design
★ 4.8 (186) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Reconciliation, Payment Processing, Payment Processing and Collection, Payment Systems, Data Mapping, Data Validation, Data Migration, Transaction Processing, Data Quality, Business Analysis, Extensible Markup Language (XML), Data Integrity, Financial Data, Commercial Banking, Financial Auditing, Banking, Retail Banking, Banking Services, Finance, Financial Planning
Intermediate · Course · 1 - 4 Weeks

Arizona State University
Skills you'll gain: Learning Strategies, Lifelong Learning, Productivity, Human Learning, Learning Theory, Cognitive flexibility, Mental Concentration, Creative Thinking, Time Management, Stress Management, Personal Development, Neurology
★ 4.8 (3K) · Beginner · Course · 1 - 4 Weeks

Georgia Institute of Technology
Skills you'll gain: Game Theory, Combinatorics, Mathematical Theory & Analysis, Mathematical Modeling, Mathematics and Mathematical Modeling, Applied Mathematics
★ 4.3 (211) · Mixed · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Feature Engineering, Model Optimization, Tensorflow, Machine Learning, Google Cloud Platform, Model Deployment, Data Preprocessing, Applied Machine Learning, Cloud Storage, Data Quality, Cloud Computing, Model Training, Keras (Neural Network Library), Machine Learning Algorithms, Embeddings, Fine-tuning, Supervised Learning, Deep Learning, Data Cleansing, Dataflow
★ 4.4 (152) · Intermediate · Specialization · 3 - 6 Months

MedCerts
Skills you'll gain: Medical Terminology, Patient-centered Care, Healthcare Ethics, Conflict Management, Patient Communication, Anatomy, Pathology, Informed Consent, Cultural Responsiveness, Intercultural Competence, Patient Assistance, Basic Patient Care, Cultural Diversity, Nursing Basics, Professionalism, Direct Patient Care, Medical Records, Physiology, Cell Biology, Communication
★ 4.8 (1.3K) · Beginner · Specialization · 1 - 3 Months