Relationships always need to be worked on no matter how long you've been in them. Many of them are more common than you might think even though they have unique nuances.

Kelli Miller has written a wonderful book, "Love Hacks, Simple Solutions to Your Most Common Relationship Issues" She's identified 15 basic struggles and gets to the underlying opportunities to solve them.

Even though I've worked with hundreds of couples over the years, this is a book I'll often be turning to as a great guide to unravel problems in very clear, simple and effective ways.