This includes "N. C. Wyeth" by Kate F. Jennings, a hardcover book with three Wyeth calendars from 1996, 1987, and 1988. The book, published in 1992 by Random House Value Publishing, features the art of N. C. Wyeth and is intended for young adults and adults interested in individual artists and general art topics. The book and calendars showcase the work of N.C. Wyeth, making it a valuable addition to any art enthusiast's collection. "I am a huge fan of the work of N.C. Wyeth, perhaps the greatest illustrator of his time. I bought these 3 calendars, and an oversized book of his work for my reference. I am a professional illustrator (you can see my work at davidmattingly dot com).

All of these calendars and the book have been looked at, and have some scuffs on the covers, but are otherwise in great shape. They are terrific reference for anyone who wants to see more of his work.

He was the father of the great painter Andrew Wyeth, and was the grandfather of Jamie Wyeth, so it is safe to say it was an artistic family.

Here is part of N.C.’s bio from Wikipedia:

Newell Convers Wyeth (October 22, 1882 – October 19, 1945) was an American painter and illustrator. He was a student of Howard Pyle and became one of America's most well-known illustrators. Wyeth created more than 3,000 paintings and illustrated 112 books — 25 of them for Scribner's, the Scribner Classics, which is the body of work for which he is best known. The first of these, Treasure Island, was one of his masterpieces and the proceeds paid for his studio. 

Wyeth traveled to the Brandywine Valley to study with Howard Pyle, eventually settling in Chadds Ford, Pennsylvania. A bucking bronco for the cover of The Saturday Evening Post on February 21, 1903, was Wyeth's first commission as an illustrator.[10] That year he described his work as "true, solid American subjects—nothing foreign about them".

It was a spectacular accomplishment for the twenty-year-old Wyeth, after just a few months under Pyle's tutelage. In 1904, the same magazine commissioned him to illustrate a Western story, and Pyle urged Wyeth to go West to acquire direct knowledge, much as Zane Grey had done for his Western novels. In Colorado, he worked as a cowboy alongside the professional "punchers", moving cattle and doing ranch chores. He visited the Navajo in Arizona and New Mexico and gained an understanding of aboriginal American culture. When his money was stolen, he worked as a mail carrier, riding between the Two Grey Hills, New Mexico trading post and Fort Defiance, Arizona, to earn enough to get back home. He wrote home, "The life is wonderful, strange—the fascination of it clutches me like some unseen animal—it seems to whisper, 'Come back, you belong here, this is your real home.'"

On a second trip two years later, he collected information on mining and brought home costumes and artifacts, including cowboy and aboriginal American clothing. His early trips to the western United States inspired a period of images of cowboys and aboriginal Americans that dramatized the Old West.

Upon returning to Chadds Ford, he painted a series of farm scenes for Scribner's, finding the landscape less dramatic than that of the West but nonetheless a rich environment for his art: "Everything lies in its subtleties, everything is so gentle and simple, so unaffected." His painting Mowing (1907), not done for illustration, was among his most successful images of rural life.

In 1906, Wyeth had married Carolyn Brenneman Bockius of Wilmington. In 1908 they moved to Chadds Ford, Pennsylvania, along the Brandywine Creek. The Wyeths created a stimulating household for their talented children Andrew Wyeth, Henriette Wyeth Hurd, Carolyn Wyeth, Ann Wyeth McCoy, and Nathaniel C. Wyeth. In 1937, Nathaniel would marry Howard Pyle's niece. Wyeth was very sociable, and frequent visitors included F. Scott Fitzgerald, Joseph Hergesheimer, Hugh Walpole, Lillian Gish, and John Gilbert.