From Understanding Behavior as Children, to Exploring Why We Cross the Line
Exploring the darker side of human behavior—one story at a time
About Bill Corbett
Welcome to the Darker Side of Bill Corbett
You may know me from somewhere else.
For more than three decades, I wrote, spoke, taught, and broadcast about parenting, relationships, and human behavior. But my fascination with why people do what they do began long before that.
I earned my degree in clinical psychology, where one area particularly captured my attention: abnormal psychology.
I was fascinated by the darker side of human behavior. Why do otherwise ordinary people sometimes make terrible choices? What happens inside the mind in the moments before someone crosses a line they can never uncross? And how does a person end up looking back at something they've done and asking: “What was I thinking?”
For years, I explored human behavior from the parenting and relationship side of the equation. Now I'm exploring the other side.
The Ovulation Murders is my first psychological thriller—and the beginning of a new series exploring relationships, obsession, secrets, impulsive behavior, and those unsettling moments when seemingly ordinary people do things no one imagined they were capable of doing.
If you enjoy psychological thrillers that take you inside relationships, inside people's secrets, and occasionally inside minds you probably wouldn't want to visit alone... Welcome. Sign up at the bottom of the screen to get bonus information, a newsletter and news about additional books coming in this series.
You've found the darker side of Bill Corbett.
Bill's New Book Launch Date Sep. 20, 2026
For decades, Bill Corbett explored the question of why people do what they do.
Now he turns that lifelong fascination toward the darker side of human behavior with The Ovulation Murders
A psychological thriller about love, obsession, and what can happen when someone crosses a line they can never uncross. GET A COPY HERE.
Just in time for Halloween
Bill Corbett is stepping into a whole new world of mystery under the pen name A.J. Zenwell, creating murder-mystery books that turn readers into detectives. His new MapClue™ series combines colorful, Sudoku-style visual maps with clues, deduction, and plenty of mystery—because sometimes the most fun way to read a mystery is to solve it yourself! CLICK HERE TO BUY ON AMAZON NOW.
Mysteries You Actually Get to Solve
Don’t just read about the investigation—study the colorful floor plan, follow the clues, and use deduction to crack each case yourself.
From Beginner Detective to Expert Sleuth
Each book features 50 mysteries that progress from 20 easy to 20 medium and finally 10 hard cases as your investigative skills improve.
More Than a Puzzle—It’s a Place to Explore
Every MapClue™ book transports you to a different atmospheric setting where rooms, locations, characters, and clues become part of the mystery.
Bill's New Love, Limits & Lessons Book - Published 2026
The Parent Toolbox
Parenting doesn’t come with an instruction manual—but it can come with a toolbox. Love, Limits & Lessons: The Parent Toolbox offers practical, real-world tools to help parents build stronger connections while raising cooperative, confident, and independent kids.
Bill's New Book Available Sep. 20, 2026
Get an advance copy of this psychological thriller for a limited time.