It’s nothing to do with a quick read. Not even in the evening. Even the weekend is not enough for that. It is only a pdf file. However, in the English version with 880 (in words eight hundred eighty) pages. And it’s all about SharePoint and OneDrive. I just hope Microsoft keeps this document up to date. That’s right, you read it. The publisher is Microsoft. With the move from docs to learn, all links have been revised. So you should always use the link below, and read the complete work online. Only if you are in the mountains or on the high seas without internet, then of course save locally.

The Book – About SharePoint and OneDrive

[Update 04/29/23] [Update 11/06/22]
Microsoft has updatet this pdf (2/2023)
Found some other languages, where the book was translated:

Language	Link	pages
English en-en	The Book	1256
German de-de	The Book	1379
Spanish es-es	The Book	1371
French fr-fr	The Book	1394
Portugues (Brazil) pt-br	The Book	1346
Portugues (Portugal) pt-pt	The Book	1346
Russian ru-ru	The Book	1401
Chinese (Simpified) zh-cn	The Book	1100
Chinese (Traditional) zh-tw	The Book	1115

Have fun reading