This is Alfa part number PA3843, which is the complete bumper to bumper workshop manual for the Milano 75 printed in 1987 for the US Models from Alfa Romeo. I would say its about 600 pages with about two dozen fold out pages that are divided up into 16 chapters to cover complete maintenance on the car:

1 Complete car

2 Engine Main Mechanical Unit

3 Fuel System

4 Ignition, Starting, and Charging Systems

5 Engine Cooling System

6 Clutch

7 Gearbox

8 Transmission

9 Differential and Axle Shaft Unit

10 Front Suspension

11 Front and Rear Brakes

12 Steering

13 Rear Suspension

14 Electrical System

15 Cluster and Electronic Instruments

16 Heater

I have seven of these complete workshop manuals from various printing versions, all complete without missing pages or broken bindings. Most are in great condition, with the worse showing light use on the cover and none of them having grease stains on the inside. There are a few with handwritten notes and additional information penciled inside of them.  These books have been stored since the 1990s and some are unopened. Although they cover the US Models they are very similar to the 75 European models. They cover the 1986 1987 1988 1989 years of the Silver, Gold, Platinum, and Verde models.