Prefix Notation, also known as Polish Notation, is a mathematical notation in which operators precede their operands. For example, instead of writing "3 + 4", you would write "+ 3 4". This format eliminates the need for parentheses to indicate the order of operations, as the position of the operators and operands inherently defines it. In Prefix Notation, expressions are evaluated from right to left. This means that when you encounter an operator, you immediately apply it to the following operands. This method is particularly useful in computer science and programming languages, as it simplifies the parsing of expressions in compilers and interpreters.