DIY Induction Heater

hello there, 

here is a link that shows how to build { DIY Induction Heater }

i want you to deliver 6 pages report on how the { DIY Induction Heater} functions and describe some of the theory behind it. 

link:  https://www.instructables.com/id/DIY-Induction-Heater/

here is the link, and please let me know if you need anything else??

Thanks,,