If you are just getting started with Packet Tracer, watch this video first.
And here is the introduction series through getting your first topology up and running:
1 - Intro to Packet Tracer: • Packet Tracer 1 - Introduction
2 - First topology: • Packet Tracer 2 - Your first topology
3 - Basic switching: • Packet Tracer 3 - Basic Switch Operations
4 - Simulation tips: • Packet Tracer Simulation Tips
For more Packet Tracer or Routing/Switching, take a look at these playlists:
• Packet Tracer
• Routing and Switching
Books and other products for networkers
Packet Guide to Core Network Protocols: https://www.oreilly.com/library/view/...
Packet Guide to Routing and Switching: https://www.oreilly.com/library/view/...
Packet Guide to Voice over IP: https://www.oreilly.com/library/view/...
Network Engineering Fundamentals: https://www.oreilly.com/videos/networ...
Advanced Network Engineering: https://www.oreilly.com/videos/advanc...
Virtualization, Networking, and Storage: https://www.oreilly.com/videos/virtua...