You may face this strange confusion in MS Word, quoting some text the starting quote is placed at the bottom of the word and is reversed (as if it was the closing quote).

The closing quote is also reversed, as if it were at the start of the text!

This strange behavior is caused by automatic language detection in Word. You must have pasted some text from elsewhere, and Word thinks that this text is in e.g. German.

To solve your problem disable automatic language detection (Review > Language) and manually define your newly pasted text as English.

Being yourself an author or student you will perhaps appreciate especially this feature, that the very structure of the book will teach you how to work. The book contains even chapters on how to prepare a document for professional publishers such as Amazon. Reading Steven Adams' Writing a book or thesis in Microsoft Word you are surprised realizing it makes you want to work -- to think, write, use Word and be creative!