diff --git a/src/lib/titleize.spec.ts b/src/lib/titleize.spec.ts
index 7f6787c..77e165c 100644
--- a/src/lib/titleize.spec.ts
+++ b/src/lib/titleize.spec.ts
@@ -30,6 +30,26 @@ describe('titlelize', () => {
       input: 'MightMakesRight',
       expected: 'Might Makes Right',
     },
+    {
+      input: 'and-it-begins',
+      expected: 'And It Begins',
+    },
+    {
+      input: 'jack_and_jill',
+      expected: 'Jack and Jill',
+    },
+    {
+      input: 'the goat and the goatee',
+      expected: 'The Goat and the Goatee',
+    },
+    {
+      input: 'This is preposterous',
+      expected: 'This Is Preposterous',
+    },
+    {
+      input: 'What is the best thing to do in an emergency?',
+      expected: 'What Is the Best Thing to Do in an Emergency?',
+    },
   ];
 
   testData.forEach(({ input, expected }) => {
diff --git a/src/lib/titlelize.ts b/src/lib/titlelize.ts
index c3bc01a..8aad46b 100644
--- a/src/lib/titlelize.ts
+++ b/src/lib/titlelize.ts
@@ -1,6 +1,13 @@
 const replaceRegexp = /[\s_-]/g;
 const splitRegexp = /(?=[A-Z])/;
+const innerWordsNoCap = new Set([
+  'and', 'the', 'to', 'in', 'an', 'a',
+]);
+
 function joinWords(newString: string, word: string) {
+  if (newString !== '' && innerWordsNoCap.has(word.toLowerCase())) {
+    return `${newString}${word.toLowerCase()} `;
+  }
   return `${newString + word.charAt(0).toUpperCase() + word.slice(1)} `;
 }