diff --git a/DIRECTORY.md b/DIRECTORY.md
index 7458a59..b28c078 100644
--- a/DIRECTORY.md
+++ b/DIRECTORY.md
@@ -1,84 +1,94 @@
 # List of all files
 
 ## Ciphers
-  * [Caesarcipher](./Ciphers/CaesarCipher.php)
-  * [Monoalphabeticcipher](./Ciphers/MonoAlphabeticCipher.php)
-  * [Morsecode](./Ciphers/MorseCode.php)
-  * [Xorcipher](./Ciphers/XORCipher.php)
+
+- [Caesarcipher](./Ciphers/CaesarCipher.php)
+- [Monoalphabeticcipher](./Ciphers/MonoAlphabeticCipher.php)
+- [Morsecode](./Ciphers/MorseCode.php)
+- [Xorcipher](./Ciphers/XORCipher.php)
 
 ## Conversions
-  * [Binarytodecimal](./Conversions/BinaryToDecimal.php)
-  * [Decimaltobinary](./Conversions/DecimalToBinary.php)
-  * [Hexadecimaltodecimal](./Conversions/HexadecimalToDecimal.php)
-  * [Octaltodecimal](./Conversions/OctalToDecimal.php)
+
+- [Binarytodecimal](./Conversions/BinaryToDecimal.php)
+- [Decimaltobinary](./Conversions/DecimalToBinary.php)
+- [Hexadecimaltodecimal](./Conversions/HexadecimalToDecimal.php)
+- [Octaltodecimal](./Conversions/OctalToDecimal.php)
 
 ## Maths
-  * [Absolutemax](./Maths/AbsoluteMax.php)
-  * [Absolutemin](./Maths/AbsoluteMin.php)
-  * [Checkprime](./Maths/CheckPrime.php)
-  * [Factorial](./Maths/Factorial.php)
-  * [Fastexponentiation](./Maths/FastExponentiation.php)
-  * [Fibonacci](./Maths/Fibonacci.php)
-  * [Fibonacci2](./Maths/Fibonacci2.php)
-  * [Perfectsquare](./Maths/PerfectSquare.php)
-  * Projecteuler
-    * [Problem1](./Maths/ProjectEuler/Problem1.php)
-    * [Problem2](./Maths/ProjectEuler/Problem2.php)
-    * [Problem3](./Maths/ProjectEuler/Problem3.php)
-    * [Problem5](./Maths/ProjectEuler/Problem5.php)
-    * [Problem6](./Maths/ProjectEuler/Problem6.php)
-    * [Problem7](./Maths/ProjectEuler/Problem7.php)
-    * [Problem9](./Maths/ProjectEuler/Problem9.php)
+
+- [Absolutemax](./Maths/AbsoluteMax.php)
+- [Absolutemin](./Maths/AbsoluteMin.php)
+- [Checkprime](./Maths/CheckPrime.php)
+- [Factorial](./Maths/Factorial.php)
+- [Fastexponentiation](./Maths/FastExponentiation.php)
+- [Fibonacci](./Maths/Fibonacci.php)
+- [Fibonacci2](./Maths/Fibonacci2.php)
+- [Perfectsquare](./Maths/PerfectSquare.php)
+- Projecteuler
+  - [Problem1](./Maths/ProjectEuler/Problem1.php)
+  - [Problem2](./Maths/ProjectEuler/Problem2.php)
+  - [Problem3](./Maths/ProjectEuler/Problem3.php)
+  - [Problem5](./Maths/ProjectEuler/Problem5.php)
+  - [Problem6](./Maths/ProjectEuler/Problem6.php)
+  - [Problem7](./Maths/ProjectEuler/Problem7.php)
+  - [Problem9](./Maths/ProjectEuler/Problem9.php)
 
 ## Searches
-  * [Binarysearch](./Searches/BinarySearch.php)
-  * [Fibonaccisearch](./Searches/FibonacciSearch.php)
-  * [Jumpsearch](./Searches/JumpSearch.php)
-  * [Linearsearch](./Searches/LinearSearch.php)
-  * [Lowerbound](./Searches/LowerBound.php)
-  * [Upperbound](./Searches/UpperBound.php)
+
+- [Binarysearch](./Searches/BinarySearch.php)
+- [Fibonaccisearch](./Searches/FibonacciSearch.php)
+- [Jumpsearch](./Searches/JumpSearch.php)
+- [Linearsearch](./Searches/LinearSearch.php)
+- [Lowerbound](./Searches/LowerBound.php)
+- [Upperbound](./Searches/UpperBound.php)
 
 ## Sorting
-  * [Arraykeyssort](./Sorting/ArrayKeysSort.php)
-  * [Bubblesort](./Sorting/BubbleSort.php)
-  * [Bubblesort2](./Sorting/BubbleSort2.php)
-  * [Countsort](./Sorting/CountSort.php)
-  * [Insertionsort](./Sorting/InsertionSort.php)
-  * [Mergesort](./Sorting/MergeSort.php)
-  * [Quicksort](./Sorting/QuickSort.php)
-  * [Radixsort](./Sorting/RadixSort.php)
-  * [Selectionsort](./Sorting/SelectionSort.php)
+
+- [Arraykeyssort](./Sorting/ArrayKeysSort.php)
+- [Bubblesort](./Sorting/BubbleSort.php)
+- [Bubblesort2](./Sorting/BubbleSort2.php)
+- [Countsort](./Sorting/CountSort.php)
+- [Gnomesort](./Sorting/GnomeSort.php)
+- [Insertionsort](./Sorting/InsertionSort.php)
+- [Mergesort](./Sorting/MergeSort.php)
+- [Quicksort](./Sorting/QuickSort.php)
+- [Radixsort](./Sorting/RadixSort.php)
+- [Selectionsort](./Sorting/SelectionSort.php)
 
 ## Strings
-  * [Checkanagram](./Strings/CheckAnagram.php)
-  * [Checkpalindrome](./Strings/CheckPalindrome.php)
-  * [Checkpalindrome2](./Strings/CheckPalindrome2.php)
-  * [Countconsonants](./Strings/CountConsonants.php)
-  * [Countsentences](./Strings/CountSentences.php)
-  * [Countvowels](./Strings/CountVowels.php)
-  * [Distance](./Strings/Distance.php)
-  * [Maxcharacter](./Strings/MaxCharacter.php)
-  * [Reversestring](./Strings/ReverseString.php)
-  * [Reversewords](./Strings/ReverseWords.php)
+
+- [Checkanagram](./Strings/CheckAnagram.php)
+- [Checkpalindrome](./Strings/CheckPalindrome.php)
+- [Checkpalindrome2](./Strings/CheckPalindrome2.php)
+- [Countconsonants](./Strings/CountConsonants.php)
+- [Countsentences](./Strings/CountSentences.php)
+- [Countvowels](./Strings/CountVowels.php)
+- [Distance](./Strings/Distance.php)
+- [Maxcharacter](./Strings/MaxCharacter.php)
+- [Reversestring](./Strings/ReverseString.php)
+- [Reversewords](./Strings/ReverseWords.php)
 
 ## Tests
-  * Ciphers
-    * [Cipherstest](./tests/Ciphers/CiphersTest.php)
-    * [Monoalphabeticciphertest](./tests/Ciphers/MonoAlphabeticCipherTest.php)
-    * [Morsecodetest](./tests/Ciphers/MorseCodeTest.php)
-  * Conversions
-    * [Conversionstest](./tests/Conversions/ConversionsTest.php)
-  * Maths
-    * [Mathstest](./tests/Maths/MathsTest.php)
-    * [Projecteulertest](./tests/Maths/ProjectEulerTest.php)
-  * Searches
-    * [Searchestest](./tests/Searches/SearchesTest.php)
-  * Sorting
-    * [Arraykeyssorttest](./tests/Sorting/ArrayKeysSortTest.php)
-    * [Sortingtests](./tests/Sorting/SortingTests.php)
-  * Strings
-    * [Stringstest](./tests/Strings/StringsTest.php)
+
+- Ciphers
+  - [Cipherstest](./tests/Ciphers/CiphersTest.php)
+  - [Monoalphabeticciphertest](./tests/Ciphers/MonoAlphabeticCipherTest.php)
+  - [Morsecodetest](./tests/Ciphers/MorseCodeTest.php)
+- Conversions
+  - [Conversionstest](./tests/Conversions/ConversionsTest.php)
+- Maths
+  - [Mathstest](./tests/Maths/MathsTest.php)
+  - [Projecteulertest](./tests/Maths/ProjectEulerTest.php)
+- Searches
+  - [Searchestest](./tests/Searches/SearchesTest.php)
+- Sorting
+  - [Arraykeyssorttest](./tests/Sorting/ArrayKeysSortTest.php)
+  - [Gnomesorttest](./tests/Sorting/GnomeSortTest.php)
+  - [Sortingtests](./tests/Sorting/SortingTests.php)
+- Strings
+  - [Stringstest](./tests/Strings/StringsTest.php)
 
 ## Utils
-  * [Arrayhelpers](./Utils/ArrayHelpers.php)
-  * [Executiontime](./Utils/ExecutionTime.php)
+
+- [Arrayhelpers](./Utils/ArrayHelpers.php)
+- [Executiontime](./Utils/ExecutionTime.php)
diff --git a/Sorting/GnomeSort.php b/Sorting/GnomeSort.php
new file mode 100644
index 0000000..003e097
--- /dev/null
+++ b/Sorting/GnomeSort.php
@@ -0,0 +1,34 @@
+<?php
+
+/**
+ * Gnome Sort
+ * References:
+ * https://www.geeksforgeeks.org/gnome-sort-a-stupid-one/
+ * 
+ * The Gnome algorithm works by locating the first instance in which two adjoining elements are arranged incorrectly and swaps with each other.
+ * 
+ * @param array $array refers to the array to be sorted
+ * @return array
+ */
+
+function gnomeSort($array){
+    $a = 1;
+    $b = 2;
+
+    while($a < count($array)){
+
+        if ($array[$a-1] <= $array[$a]){
+            $a = $b;
+            $b++;
+        }else{
+            list($array[$a],$array[$a-1]) = array($array[$a-1],$array[$a]);
+            $a--;
+            if($a == 0){
+                $a = $b;
+                $b++;
+            }
+        }
+    }
+
+    return $array;
+}
diff --git a/tests/Sorting/GnomeSortTest.php b/tests/Sorting/GnomeSortTest.php
new file mode 100644
index 0000000..575d607
--- /dev/null
+++ b/tests/Sorting/GnomeSortTest.php
@@ -0,0 +1,23 @@
+<?php
+
+require_once __DIR__ . '/../../vendor/autoload.php';
+require_once __DIR__ . '/../../Sorting/GnomeSort.php';
+
+use PHPUnit\Framework\TestCase;
+
+class gnomeSortTest extends TestCase
+{
+    public function testGnomeSort() 
+    {
+        $array = array(3, 0, 2, 5, -1, 4, 1);
+        $sorted = gnomeSort($array);
+        $this->assertEquals([-1, 0, 1, 2, 3, 4, 5], $sorted);
+    }
+
+    public function testGnomeSort2() 
+    {
+        $array = array(8, -50, 1, 90, 35, 47, 69, -5);
+        $sorted = gnomeSort($array);
+        $this->assertEquals([-50, -5, 1, 8, 35, 47, 69, 90], $sorted);
+    }
+}