• Function with receiver type
• Multiple return values in functions
• if condition with a short statement
• Arrays
• maps
• Slices
• for loops
• switch case
• Structs
• Pointer
• Pointer example
• Interfaces
• Goroutines - concurrency in golang
• channels - make, open, close
• capacity of a channel
• select in channel
• worker pools
• defer
• json.Unmarshal