Objective-C courses can help you learn the basics of object-oriented programming, memory management, and the Cocoa framework for macOS and iOS app development. You can build skills in creating user interfaces, handling data with Core Data, and integrating APIs for enhanced functionality. Many courses introduce tools like Xcode for coding and debugging, as well as Interface Builder for designing app layouts, helping you apply these skills in real-world app projects.

Skills you'll gain: Microsoft Excel, Spreadsheet Software, Excel Formulas, Project Management, Project Coordination, Organizational Skills, Productivity Software, Collaborative Software, Project Planning, Data Validation, Data Sharing
Beginner · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Penetration Testing, Network Security, Network Monitoring, Exploitation techniques, Virtual Private Networks (VPN), Cryptographic Protocols, Network Protocols, General Networking, Computer Networking, Command-Line Interface, Network Analysis, Proxy Servers
Build toward a degree
Intermediate · Course · 1 - 3 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Apache Spark, Scala Programming, Big Data, Data Manipulation, Distributed Computing, Data Processing, Performance Tuning, SQL, Data Persistence, Data Analysis, Programming Principles
Intermediate · Course · 1 - 4 Weeks

Universitat Autònoma de Barcelona
Skills you'll gain: Climate Change Adaptation, Supply And Demand, Sustainable Development, Market Dynamics, International Relations, Climate Change Mitigation, Economics, Environmental Regulations, Environmental Policy, Mathematical Modeling, Tax Laws, Social Impact, Public Policies, Cost Benefit Analysis, Big Data
Beginner · Course · 1 - 3 Months

Simplilearn
Skills you'll gain: Lean Six Sigma, Process Mapping, Statistical Process Controls, Six Sigma Methodology, Lean Manufacturing, Kaizen Methodology, Statistical Analysis, Process Improvement, Process Capability, Quality Management, Project Management, Root Cause Analysis, Customer Analysis, Regression Analysis
Beginner · Course · 1 - 3 Months

Skills you'll gain: C++ (Programming Language), Object Oriented Programming (OOP), File I/O, Data Structures, Algorithms, Maintainability, Performance Tuning, File Management, Debugging
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Innovation, Project Management, AI Product Strategy, Responsible AI, Generative AI, Project Coordination, Cost Reduction, Project Planning, Resource Allocation, Process Improvement, Risk Management, Predictive Analytics
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Digital Advertising, Online Advertising, Campaign Management, Advertising, Advertising Campaigns, Marketing, Social Media Campaigns, Marketing Management, Generative AI Agents, Budget Management, Target Audience
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Artificial Intelligence, Responsible AI, Generative AI, Open Source Technology, Large Language Modeling, Machine Learning
Beginner · Course · 1 - 3 Months

University of Leeds
Skills you'll gain: Exploratory Data Analysis, Data Cleansing, Statistical Modeling, Data Visualization, Statistics, R (Software), Data Analysis, Statistical Inference, Descriptive Statistics, Box Plots, Data Visualization Software, Histogram, Probability, Simulations
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: User Story, Kanban Principles, Agile Methodology, Agile Project Management, Productivity Software, Organizational Skills, Project Management Software, Prioritization, Project Management
Beginner · Guided Project · Less Than 2 Hours

Infosec
Skills you'll gain: Project Schedules, Stakeholder Management, Information Technology, Project Risk Management, Environmental Social And Corporate Governance (ESG), IT Management, Vendor Management, Procurement, Project Management, Stakeholder Communications, Issue Tracking, Project Management Life Cycle, Project Controls, Risk Management, Agile Methodology, Performance Measurement, Project Planning, Resource Management, Quality Management, Performance Management
Beginner · Course · 1 - 4 Weeks