This is a very lovely textbook style informational about the elevated tracks that frame the 39 famous blocks in the heart of downtown Chicago enveloped between two beautifully painted stories, one of 1911 New Year's Eve in Chicago, and one of 2018 New Year's Eve in Chicago. A longtime lover of trains, I was drawn particularly to this book because I am a daily rider of the Chicago Transit Authority. And I am so very pleased to have learnt the history, particularly about the cable cars which preceded the elevated structure; about the amazing Mr. Charles Yerkes who is the primary responsible party for the creation of this beautiful elevated structure and who the author describes favorably versus the many historical accounts that compare him to the devil; about the unique design by a man who is now forgotten for this grand contribution to Chicago (John Alexander Waddell); about the post World War II days of perpetual migration to suburbs yet a continuance of the thriving of Chicago because of the elevated tracks (when all other city commerce began to falter: Cleveland, Detroit, my beloved Pittsburgh, etcetera); about Richard J. Daley who was before my time so despite seeing his name everywhere in the city, I knew nothing of the man until reading of this book, and the author shows his own personal liberal social slant when he accuses Daley of wanting to demolish the elevated tracks because they reportedly infiltrated the city with black people after 5pm; and finally about how Jane Byrne won the election and canceled all plans of the late 1970s demolishing plus combined with President Reagan's new policy on no more federal funding for silly city projects (yeah!) that the elevated tracks in The Loop would stay! I enjoy the author's autistic-like attention to vernacular as it pertains to how, when, and why the downtown area became known as "The Loop" in addition to the tracks being known as such. My only complaint exists for a few grammatical errors in this January 2021 edition. The first: page 84, paragraph 3 where he writes, "Although this loop for Alley 'L' was never was built..." (delete extra was). The second: page 93, paragraph 1 where he writes, "...although they did come out in force for the 1910 auction following Yerkes's death to pick through the his art holdings in search of bargains." (delete "the" before "his art holdings." The third: page 127. I believe that his math on word count for the described book is incorrect. It should cite 114,000 words based on the described rebuttal of 90,000 words being "just a little fewer than are in the book (which he seemingly incorrectly cites as 14,000 words). And finally page 185, paragraph 2. Missing a word. It is printed as, "Raymond DeGroote, a railroad enthusiast, was even younger when he took the Ravenswood visit his father in the Loop..." It should read as "to visit his father in the Loop." Great book. I recommend! Thank you to the author for dedicating his time to educating we the readers about The Loop!