diff --git a/.npmignore b/.npmignore
index c7ceb10..60b47a5 100644
--- a/.npmignore
+++ b/.npmignore
@@ -1,4 +1,7 @@
 node_modules/
 package-lock.json
 src/
+.github/
+coverage/
+test/
 tsconfig.json
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ef07a89..9deefb8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,17 @@
+# Version 2.5.0 [ON-GOING]
+
+- `Added`:
+  - `getFirstCharIndex(string: string): number` method has been implemented.
+  - `normalizeSentence(sentence: string): string` method has been implemented, this method is used to upper the first word char & lower the rest of them & append a dot at the end of it.
+  - `getFirstCharIndex(string: string)` method has been implemented.
+  - `getFirstEndingPunctuationIndex(string: string): number` method has been implemented.
+  - `getIndexOfUnfullyDeterminated(string: string, toSearch: string | string[]): number` method has been implemented to get the first index of a given set of (only one) char in a given string.
+
+# Version 2.4.1
+
+- `Patch`:
+  - Remove useless files from package (When `npm publish` is performed)
+
 # Version 2.4.0
 
 - `Added`:
diff --git a/package.json b/package.json
index 68593fc..b44becc 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "string-utils-ts",
-  "version": "2.4.0",
+  "version": "2.5.0",
   "description": "Provide some useful functions for strings",
   "main": "./lib",
   "scripts": {
diff --git a/src/main.ts b/src/main.ts
index 06a5cd0..51f9ff1 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -89,7 +89,7 @@ export class StringUtils {
    * str: 'Test'
    * index: '2'
    * toReplaceWith: 'hello'
-   * returns: 'Tehellost'
+   * returns: 'Tehellot'
    */
   public static replaceAt(
     str: string,
@@ -162,4 +162,38 @@ export class StringUtils {
 
     return revelantSubSequences;
   }
+
+  /**
+   * Returns the index of the first char
+   *
+   *
+   * @param string - The string to search in
+   */
+  public static getFirstCharIndex(string: string) {
+    return this.getFirstIndexOfUnfullyDeterminated(
+      string.toLowerCase(),
+      'abcdefghijklmnopqrstuvwxyz',
+    );
+  }
+
+  /**
+   * Returns the index of the ending punctuation char index
+   *
+   * @param string - The string to search in
+   *
+   */
+  public static getFirstEndingPunctuationIndex(string: string) {
+    return this.getFirstIndexOfUnfullyDeterminated(string, '?!;.');
+  }
+
+  /**
+   * Returns first index of a given set of char in a given string
+   *
+   */
+  public static getFirstIndexOfUnfullyDeterminated(
+    string: string,
+    toSearch: string | string[],
+  ): number {
+    return string.split('').findIndex((char) => toSearch.includes(char));
+  }
 }
diff --git a/src/word/utils.ts b/src/word/utils.ts
index 1d4a533..f54dffd 100644
--- a/src/word/utils.ts
+++ b/src/word/utils.ts
@@ -227,4 +227,28 @@ export default class StringUtilsWord {
       .map((subSequence) => this.formatWord(subSequence))
       .join(' ');
   }
+
+  /**
+   *
+   * Returns a dot at end of sentence & first word char uppered.
+   *
+   * @param sentence - A sentence in a string
+   *
+   * @example
+   * sentence: '        this is a     sentence'
+   * returns: 'This is a sentence.'
+   */
+  public static normalizeSentence(sentence: string): string {
+    const firstCharIndex = StringUtils.getFirstCharIndex(sentence);
+    if (firstCharIndex == -1)
+      // There's no char in given string
+      return sentence;
+    sentence = this.normalizeSpacesBetweenWords(
+      sentence.substring(firstCharIndex, sentence.length),
+    );
+    const arrayOfSentence = sentence.split('');
+    sentence = sentence.toLowerCase();
+    arrayOfSentence[0] = arrayOfSentence[0].toUpperCase();
+    return `${arrayOfSentence.join('')}${StringUtils.getFirstEndingPunctuationIndex(sentence) == sentence.length - 1 ? '' : '.'}`;
+  }
 }
diff --git a/test/main.spec.ts b/test/main.spec.ts
index 5570b47..99b356b 100644
--- a/test/main.spec.ts
+++ b/test/main.spec.ts
@@ -71,3 +71,38 @@ runner.runBasicTests(
     ['    '.split(' '), false],
   ]),
 );
+
+runner.runBasicTests(
+  StringUtils.getFirstCharIndex,
+  new Map<string, number>([
+    ['   this is a sentence', 3],
+    ['this is a sentence', 0],
+    ['!!this', 2],
+    ['!!!', -1],
+  ]),
+);
+
+runner.runBasicTests(
+  StringUtils.getFirstEndingPunctuationIndex,
+  new Map<string, number>([
+    ['!', 0],
+    ['This', -1],
+    ['This ?', 5],
+    ['This !', 5],
+    ['This.', 4],
+    ['!This', 0],
+    ['This;', 4],
+    ['', -1],
+  ]),
+);
+
+runner.runBasicTests(
+  StringUtils.getFirstIndexOfUnfullyDeterminated,
+  new Map<any, number>([
+    [() => ['test', 'te'], 0],
+    [() => ['', ''], -1],
+    [() => ['hello', 'o'], 4],
+    [() => ['hey ', ' '], 3],
+    [() => ['bouh', 'hello'], 1],
+  ]),
+);
diff --git a/test/test.utils.ts b/test/test.utils.ts
index 21935cb..9416cd1 100644
--- a/test/test.utils.ts
+++ b/test/test.utils.ts
@@ -17,7 +17,7 @@ export default class JestRunner {
     this.checkInvokation(fn);
 
     for (const [input, output] of expectedReturns.entries()) {
-      test(`[${fn.name}] Should return '${output} for '${input}''`, () => {
+      test(`[${fn.name}] Should return '${output}' for '${input}''`, () => {
         (inputPropertiesToTestName && output
           ? expect(
               this._classToInvoke[fn.name](
diff --git a/test/words.spec.ts b/test/words.spec.ts
index e5b63e7..898c356 100644
--- a/test/words.spec.ts
+++ b/test/words.spec.ts
@@ -143,4 +143,18 @@ describe('Normalization of stuffs', () => {
       ['s', ''],
     ]),
   );
+
+  runner.runBasicTests(
+    StringUtilsWord.normalizeSentence,
+    new Map<string, string>([
+      ['        this is a     sentence', 'This is a sentence.'],
+      ['           ', '           '],
+      ['         !!!!!! hello you', 'Hello you.'],
+      ['      a !!!! story', 'A !!!! story.'],
+      ['        This is a story.', 'This is a story.'],
+      ['This is a story !', 'This is a story !'],
+      ['Is this a story ?', 'Is this a story ?'],
+      ['Is this a story ? No', 'Is this a story ? No.'],
+    ]),
+  );
 });