The 52-year-old Brazil native has written three novels, one of which was a romance-comedy and another plotted around a detective.
"I didn't like how they turned out so I pitched them," Tucker said.
But until now, none of them had been published.
Tucker's recent novel, "The Chair," was recently published through Tate Publishing And Enterprises LLC, based out of Mustang, Okla.
Tucker said the novel -- which was released nationwide Nov. 4 -- is based around the life of Sarah. The character grows up losing her entire family to war, including her only son.
Tucker said Sarah's belief and faith in God is challenged in the novel, but an encounter with a "strange women" leads Sarah to purchase a rocking chair.
The chair eventually leads Sarah back to her faith.
"She finds a certain sanctuary in this chair," Tucker said.
Tucker said the writing for "The Chair" came rather easily. However, it gathered some dust before he took a chance to have it published.
"I wrote the book in about three days," he said. "But it sat in the desk for about 13 years."
He was born in Brazil in 1956 and is the son of Rex and Marilyn Tucker and Shirley A. Roeschlein, all of Brazil.
Tucker graduated from Brazil High School in 1974 and attended Brigham Young University before going to Indiana State University, earning a bachelor's degree in biology.
While at ISU, Tucker said his passion for writing scratched and clawed its way to the surface. He said he was inspired to begin writing after putting together a term paper for a psychology class at the school. The paper was called, "The Goldfish Principal."
"That's how I actually started writing," Tucker said. "I enjoy writing, but I never thought I'd get published. I write because I like to write."
He earned his masters degree in biochemistry and his Doctorate in pharmacology.
He was the Laboratory Director in the Physiology and Pharmacology Departments for Indiana University's School of Medicine, and the Terre Haute Center for Medical Education, located at ISU.
He also served on the board of directors for the Terre Haute Chapter of the American Heart Association and was President of the American Heart Association's Professional Medical Education Foundation.
In 2003, he retired from the medical field to focus on his writing career and he also owns his own construction firm, Tucker Construction, based out of Brazil.
Dr. Mark Tucker, author of "The Chair," will conduct a public book signing Saturday at Waldenbooks, located in the Honey Creek Mall, Terre Haute.
The event is scheduled to take place from 2-4 p.m.