In a nutshell: Top rope and lead climbing are methods for protecting a climb. Read more about the exact differences and the gear used in this post.
The Different Types of [Rock] Climbing
Courses – MaasSAC
What are top roping and lead climbing
Lead – USA Climbing
Climbing Gyms in Seattle for Bouldering, Lead, and Top Rope
Lead Climbing vs Top Rope: What's The Deal? - Hard Climbs
What is top roping? - The Boardroom Climbing
Lead Climbing vs. Top Rope Climbing - inSPIRE Rock Indoor Climbing & Team Building Center
Top Rope Climbing - Part 1 of 3. Learn How To Rock Climb - VDiff
Climbing How To: Setting up TOP ROPES on bolted anchors.
The Different Types of [Rock] Climbing
What is top roping and how does it differ to lead climbing?