A Tree Lopper or an Arborist? How to know the difference

https://ace-wiki.win/index.php?title=Don't_know_the_difference_between_a_tree_lopper_and_an_Arborist%3F_26086

One of the most pressing needs following a thunderstorm is to have the branches and leaves of the trees in a compound trimmed. Here a differentiation has to be manufactured involving the Arborist and the tree lopper