Breadcrumbs are used as coating for deep fried food such as, fried chicken, croquettes, schnitzel. The cooking process turns the coating into a crispy golden layer, most of the time keeping the inside moist if cooked at a proper tempreture. You have regular breadcrumbs which are made of dehydrated breadcrusts, then you have Japanese Panko.
It is light and flaky that gives a light golden crust. Panko is of two types Panko flakes or tan panko and white Panko with smaller flakes like a coarse powder. The word ‘Panko’ is made of two words ‘Pan’, Japanese for bread and ‘Ko’ flour. For the packaged Panko, industries make a crustless verity of bread specificaly for Panko.
Given below are two recipes one for panko, another for regular breadcrumbs.