Create Bootable usb in Mac Os.
Please watch this video if you want to create a bootable pen drive in mac os .
Steps for creating Bootable usb stick on mac os , since any one may want to use any other os apart from mac os if required. High quality pen drive is needed for this process i have used 32gb pen drive since it's the best option and os iso is needed for creating the bootable stick , for booting up this pen drive you will have to restart your pc or laptop and when the screen lights up press and hold down option key until you see any EFI boot menu.
Thank you !