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.

Sungkyunkwan University
Skills you'll gain: Intercultural Competence, Cultural Diversity, Culture, Liberal Arts, European History, World History
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Secure Coding, Application Security, Authorization (Computing), Authentications, Data Validation, Role-Based Access Control (RBAC), Security Controls, Configuration Management, Package and Software Management, Cybersecurity, Identity and Access Management, Software Installation, Computer Programming, Information Technology
★ 4.6 (19) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Threat Detection, Cyber Threat Intelligence, Threat Management, Vulnerability Assessments, Incident Response, Vulnerability Scanning, Cyber Security Assessment, Penetration Testing, Vulnerability Management, Cybersecurity, Incident Management, Cyber Security Policies, Security Strategy, Risk Mitigation, Emergency Response, Network Analysis, Technical Writing
★ 4.9 (18) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Medical Privacy, Personally Identifiable Information, Cyber Security Strategy, Health Insurance Portability And Accountability Act (HIPAA) Compliance, Information Privacy, Security Awareness, Data Security, Cybersecurity, Health Information Management and Medical Records, Cyber Attacks, Information Assurance, Security Controls, Health Information Management, General Data Protection Regulation (GDPR), Computer Security Awareness Training, Data Sharing, Security Strategy, Authorization (Computing), Healthcare Industry Knowledge, Health Care Procedure and Regulation
Beginner · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Hypertext Markup Language (HTML), Web Content Accessibility Guidelines, HTML and CSS, Interactive Design, Usability, Web Design, Front-End Web Development
★ 4.9 (17) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Rust (Programming Language), Memory Management, System Programming, Other Programming Languages, Code Reusability, Secure Coding, Data Structures, Data Sharing, Data Management, Data Access
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Transaction Processing, Data Persistence, Performance Tuning, System Programming, Memory Management, Operating Systems, C++ (Programming Language), C (Programming Language), System Configuration, Hardware Architecture, Data Storage, Computer Hardware, Data Storage Technologies, Computing Platforms, Program Development, Application Development
★ 5 (71) · Beginner · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Model Evaluation, Apache Hadoop, Machine Learning Methods, AI Personalization, Digital Marketing Tools, Data-Driven Marketing, Customer Analysis, Marketing Automation, Marketing Analytics, Digital Marketing, Marketing Strategies, Applied Machine Learning, Big Data, Marketing, Customer Insights, Personalized Campaigns, Machine Learning, Artificial Neural Networks, Machine Learning Algorithms, Deep Learning
Beginner · Course · 1 - 4 Weeks

Northeastern University
Skills you'll gain: Data Storytelling, Data Presentation, Plotly, Statistical Visualization, Interactive Data Visualization, Matplotlib, Data Visualization Software, Network Analysis, Plot (Graphics), Seaborn, Data-Driven Decision-Making, Network Model, Data Mining, Scatter Plots, R Programming, R (Software), Graphing, Graph Theory, Box Plots, Heat Maps
Mixed · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: Routing Protocols, TCP/IP, Wide Area Networks, Network Planning And Design, Network Monitoring, Configuration Management
Beginner · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Music Theory, Classical Music, Music History, Music, Musical Composition, Instrumental Music, Music Performance
★ 4.9 (15) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Microsoft Visual Studio, Development Environment, Maintainability, Integrated Development Environments, Microsoft Development Tools, Scalability, Software Development Tools, Python Programming, Debugging
Advanced · Course · 1 - 4 Weeks