Too much has happened since Jim Harbaugh became the head coach of the Michigan football program. Too much to keep track of, anyway. That’s the lesson taught in “Michigan Man: Jim Harbaugh and the Rebirth of Wolverines Football,” a work that examines how Michigan lured Harbaugh away from the NFL and how he subsequently changed the program.

The author, Angelique Chengelis, is well known to Michigan fans for her role covering the Wolverines at The Detroit News. Her documentation of how Michigan has changed over the last (almost) three years makes for a book that you’ll want to read again in five years, then again in eight, and ten…

Chengelis sums up Harbaugh very nicely in numerous spots throughout the book. One of the best examples: “He is a curious blend of that old-school tradition, wearing the skinny Block M that Schembechler wore, and new-school hip. He’s the guy who can appear in a bright yellow sports car in a rap video and later don Woody Hayes-style glasses to wear while coaching.”

Even if you have some kind of grudge against Chengelis for not winning one of her photo caption contests, there are three sections in particular that will probably make it worth your time.

First, a foreword by Jack Harbaugh. In it, Harbaugh brings the homecoming story full circle by telling of the time his son, Jim, asked a coach of his what kind of football team they’d have that year. “We won’t know how good this football team will be until 15, 20, 25, 30 years from now,” said Jerry Hanlon, who wanted to wait to judge his players as fathers, husbands, etc. “Come back then, and we will know what kind of team you are.”

The elder Harbaugh goes on: “They come back whenever they have the chance.”

Second, Chengelis has a masterful retelling in the prologue of how it is that Jim Hackett, the former interim athletic director at Michigan, managed to pull Harbaugh away from the NFL, including when Hackett sent a picture of the contract from his phone because his laptop had died.

And third, in a chapter called “The Harbaugh Boys,” Chengelis unfolds the uniqueness of this family through the perspective of Jack, John and Jim Harbaugh. One of the entertaining stories is of Jim and John getting into a wrestling match on a beach and Jim holding John under the water—for too long. Was it shocking to know that this happened while Jim Harbaugh was grown and in the NFL? No.

Those are three great moments, but a majority of “Michigan Man” is things you’ve known this whole time. As a I said, though, too much has happened, and this book often invokes that “I forgot about that!” feeling.

This is a very quote-heavy book that provides a lot of context. The two main focuses are developing Harbaugh’s character and recounting the most important steps in his Michigan coaching career. That includes the good stuff—like beating No. 8 Wisconsin and rival Michigan State—but just as much time is devoted to hashing out the bitterness after shaking losses.

Rather than a robotic retelling of the games themselves, there is a lot of building up to the moment by surfacing quotes from press conferences and radio appearances, followed by immediate fallouts, whether positive or negative.

Chengelis also does well in making comparisons between what Michigan was like pre-Harbaugh and what it’s now like following this evolution.

In a section about that first fall camp under Harbaugh in 2015, she says blatantly: “Before Harbaugh’s arrival, the Michigan players stayed at the Sheraton hotel and went to practices. Under Harbaugh they lived in dorms without air conditioning. So much for the country club.”

Harbaugh, “college football’s most polarizing coach,” keeps reporters’ notebooks full of useful nuggets and sayings. As she’s documenting all those moments that have transformed Michigan, though, Chengelis does readers a favor by not belaboring the point and making it sluggish.

Because this isn’t a look at a figure who was prominent 35 years ago; it’s about one who may be becoming even more prominent still. So while happy memories can be found on most pages, you’ll be appreciative for the conciseness of the work, seeing as some of these things happened less than a year ago.

“Michigan Man” is a book that you’ll want to keep revisiting. It has documented the most vital points on the timeline that has changed Michigan football for the time being, and its analysis of those events, as well as the coach who spurred them, are capturing.