Nothing you skiddie fuck
>>60347489
Kali is more like a collection of tools. Maybe you need to look about hacking techniques.
How and why you should kys - Richard Stallman
>>60347489
nothing about kali, what you really need to do is first learn about debian, to get acquainted with your new operating system since it's built on debian.
as this guy>>60347660 said, it's a collection of tools. For each tool, typeman {programName}in the terminal to get a full description of what each tool does and how to use it.
>>60347489
just google pentesting books you skid