Chapman's "Five Love Languages."

MWD's "Divorce Remedy."

"Men are from Mars; Women are from Venus."

"Love and Respect," by Eggerichs.

"His Needs, Her Needs," by Harley.

Those would be my "Big Five." Specifically, for:

Infidelity:

"NOT Just Friends," by Glass.

"Surviving an Affair," by Harley.

"After the Affair," by Janice Spring.

Self-Improvement:

"No More Mr. Nice Guy," by Glover.

"Hold onto your N.U.T.S." by Levine.

Puppy