diff --git a/Headers/Playfair.hpp b/Headers/Playfair.hpp
index 691537c..6a7d60c 100644
--- a/Headers/Playfair.hpp
+++ b/Headers/Playfair.hpp
@@ -17,34 +17,34 @@ private:
 	static char REPLACED;	//The letter that will need to be replaced in the grid and any input string or keyword
 	static char REPLACER;	//The letter that replaced REPLACED in any input string or keyword
 	static char DOUBLED;	//The letter that will be placed between double letters in the input string if necessary or to make the string length even
-	std::string inputString;
-	std::string outputString;
-	std::string keyword;
-	char grid[5][5];
-	void createGrid();
-	bool checkGrid(const char letter) const;
-	void searchGrid(char letter, int& row, int& col);
-	void setInputString(std::string input);
-	void setKeyword(std::string key);
-	std::string encode();
-	std::string decode();
+	std::string inputString;	//The message that needs to be encoded/decoded
+	std::string outputString;	//The encoded/decoded message
+	std::string keyword;		//The keyword used to create the grid
+	char grid[5][5];			//The grid used to encode/decode the message
+	void createGrid();			//Create the grid from the keyword
+	bool checkGrid(const char letter) const;			//Returns true if the letter is found in the grid
+	void searchGrid(char letter, int& row, int& col);	//Searches the grid for letter and sets row & col to its location in grid
+	void setInputString(std::string input);	//Strips invalid characters from the string that needs encoded/decoded
+	void setKeyword(std::string key);	//Strips invalid character from the keyword and creates the grid
+	std::string encode();	//Encodes inputString using the Playfair cipher and stores the result in outputString
+	std::string decode();	//Decodes inputString using the Playfair cipher and stores the result in outputString
 public:
 	Playfair();
 	~Playfair();
-	std::string encode(std::string keyword, std::string input);
-	std::string decode(std::string keyword, std::string input);
-	std::string getKeyword() const;
-	std::string getInputString() const;
-	std::string getOutputString() const;
-	std::string getGrid() const;
-	void reset();
+	std::string encode(std::string keyword, std::string input);	//Sets the keyword and inputString and encodes the message
+	std::string decode(std::string keyword, std::string input);	//Sets the keyword and inputString and decodes the message
+	std::string getKeyword() const;			//Returns the keyword used to create the grid
+	std::string getInputString() const;		//Returns the string that needs encoded/decoded
+	std::string getOutputString() const;	//Returns the encoded/decoded message
+	std::string getGrid() const;			//Returns a string representation of the grid
+	void reset();	//Makes sure all variables are empty
 	//Change static variables
-	static char getReplaced();
-	static void setReplaced(const char replaced);
-	static char getReplacer();
-	static void setReplacer(const char replacer);
-	static char getDoubled();
-	static void setDoubled(const char doubled);
+	static char getReplaced();	//Returns the character that needs replaced in messages and the grid
+	static char getReplacer();	//Returns the character that replaces the character that needs replaced
+	static char getDoubled();	//Returns the character that is added between 2 adjacent characters that are the same
+	static void setReplaced(const char replaced);	//Sets the character that needs replaced in messages and the grid
+	static void setReplacer(const char replacer);	//Sets the character that replaces the character that needs replaced
+	static void setDoubled(const char doubled);		//Sets the character that is added betwee 2 adjacent characters that are the same
 };
 
 #endif //PLAYFAIR_HPP