Alfred A. Knopf, Inc. is an American publishing house that was founded by Blanche Knopf and Alfred A. Knopf Sr. in 1915.
From the start, Knopf focused on European translations and high-brow works of literature. During World War I these books were cheap to obtain and helped establish Knopf as an American firm publishing European works.
In 1960, Random House acquired the Alfred A. Knopf publishing house. Knopf published textbooks until 1988, when Random House's schools and colleges division was sold to McGraw Hill.
Another series I highly recommend for any city! Portable, and extremely well-designed. Sectional maps fold out and contain a wealth of information for each region of the city; much easier than flipping through a larger guidebook or unwieldy map. Also very affordable at under $10!