It took me years of discipline and control to finally be able to read a book in services like O'Reilly books from cover to cover.
Now, compare it with my own situation living in a medium mountain city in Brazil. Whenever I wanted to read a book published in the US, I had to go to a physical book shop in a major city at least some 100 miles from my city, and pay for each book, at least twice (probably more) that now I pay a month for o'Reilly.
Of course I would read each book cover to cover, and come back to it multiple times, until I had to start doing things like taping the cover back to the book.
Now, compare it with my own situation living in a medium mountain city in Brazil. Whenever I wanted to read a book published in the US, I had to go to a physical book shop in a major city at least some 100 miles from my city, and pay for each book, at least twice (probably more) that now I pay a month for o'Reilly.
Of course I would read each book cover to cover, and come back to it multiple times, until I had to start doing things like taping the cover back to the book.