Step 1: Understand what a stack is. A stack is a collection of items where you can add or remove items.
Step 2: Learn the term LIFO, which stands for Last In, First Out. This means that the last item added to the stack is the first one to be removed.
Step 3: Visualize a stack like a stack of plates. If you add a plate on top, you have to take that plate off first before you can get to the plates below it.
Step 4: Remember that in a stack, you can only add (push) or remove (pop) items from the top of the stack.
