There are a TON of books out there about marriage and relationships, and I have read so many! I have my favorites that I keep coming back to. Here are a few, I hope you find them as helpful!
The Five Love Languages by Gary Chapman – A great book for any couple, from newlyweds to couples married for years! This book will help you understand how you best show love to your partner and to understand what you need from them to feel loved and content!
Hold Me Tight by Sue Johnson – An important guide that explains 5 topics that are important conversations to have with your partner so your relationship will thrive. These conversations aid each member of the couple in understanding both themselves as well as their partner.
The Seven Principles for Making Marriage Work by John Gottman – The title says it all! John Gottman has done extensive research to understand why some marriages fail and some thrive. Learn from his findings! Know what you are doing right, what you are doing wrong, and how to strengthen your bond.