I recently had to write a book review for a (print) magazine. For the first time I was doing it from an ebook. It was a non-fiction book and if it had been on paper I would probably have done a lot of flipping. But what I did instead was to mark it up as I went through and then write the review from my general impression of the book and from checking out the marked passages.
As
Aleksandr Orlov would say, Simples!