Anthropic has a whole set of free official courses called Claude Academy, 27 in total right now. You can watch without signing in; sign in to save your progress and earn badges. I’ve collected every course link by the site’s own categories. Bookmark it and work through them at your own pace.

[Getting started]
Claude 101, 2.5 hours
https://academy.claude.com/courses/claude-101
Claude Code 101, 1.5 hours
https://academy.claude.com/courses/claude-code-101
Introduction to Claude Cowork, 2.5 hours
https://academy.claude.com/courses/introduction-to-claude-cowork
Introduction to Claude Tag, 2.5 hours
https://academy.claude.com/courses/introduction-to-claude-tag
Claude Platform 101, 1.5 hours
https://academy.claude.com/courses/claude-platform-101

[Going deeper with the products]
Claude Code in Action, 1 hour
https://academy.claude.com/courses/claude-code-in-action
Introduction to MCP, 1 hour
https://academy.claude.com/courses/introduction-to-model-context-protocol
MCP: Advanced Topics, 1.5 hours
https://academy.claude.com/courses/model-context-protocol-advanced-topics
Introduction to Subagents, 45 minutes
https://academy.claude.com/courses/introduction-to-subagents
AI-Native SDLC Playbook, 1 hour
https://academy.claude.com/courses/ai-native-sdlc-playbook
Introduction to Agent Skills, 1 hour
https://academy.claude.com/courses/introduction-to-agent-skills
Deploying Claude Enterprise with Confidence, 2.5 hours
https://academy.claude.com/courses/deploying-claude-enterprise-with-confidence

[AI fluency]
AI Fluency: Framework & Foundations, 4 hours
https://academy.claude.com/courses/ai-fluency-framework-foundations
AI Capabilities and Limitations, 3.5 hours
https://academy.claude.com/courses/ai-capabilities-and-limitations
Building Effective Human-Agent Teams (beta), 45 minutes
https://academy.claude.com/courses/building-effective-human-agent-teams

[AI fluency for specific audiences]
For builders
https://academy.claude.com/courses/ai-fluency-for-builders
For creative work
https://academy.claude.com/courses/ai-fluency-for-creative-work
For educators
https://academy.claude.com/courses/ai-fluency-for-educators
For pK–12 teachers
https://academy.claude.com/courses/ai-fluency-for-k-12-educators
For pK–12 trainers
https://academy.claude.com/courses/ai-fluency-for-pk-12-train-the-trainer
For people teaching AI fluency
https://academy.claude.com/courses/teaching-ai-fluency
For nonprofits
https://academy.claude.com/courses/ai-fluency-for-nonprofits
For small businesses
https://academy.claude.com/courses/ai-fluency-for-small-businesses
For students
https://academy.claude.com/courses/ai-fluency-for-students

[API development]
Building with the Claude API, 9 hours
https://academy.claude.com/courses/building-with-the-claude-api
Claude + Amazon Bedrock, 8 hours
https://academy.claude.com/courses/claude-with-amazon-bedrock
Claude + Google Cloud Vertex AI, 8.5 hours
https://academy.claude.com/courses/claude-with-google-cloud-s-vertex-ai

The full catalog is here
https://academy.claude.com/courses

Which one are you starting with?