Don't know the difference between a tree lopper and an Arborist?

https://www.goodreads.com/topic/show/19791239-how-to-tell-the-difference-between-at-tree-lopper-and-an-arborist

One of the very most pressing needs after having a thunderstorm is to really have the branches and leaves of the trees in a compound trimmed. Here a differentiation must be made between the Arborist and the tree