Learn English – A single word meaning deep love of reading

You can consider refractory period.

In human sexuality, the refractory period is usually the recovery phase after orgasm during which it is physiologically impossible for a man to have additional orgasms.

Though it is generally reported that women do not experience a refractory period and can thus experience an additional orgasm (or multiple orgasms) soon after the first, some sources state that both men and women experience a refractory period because women may also experience a moment after orgasm in which further sexual stimulation does not produce excitement.

Wikipedia

OED has a gender-neutral definition:

Psychol. a period after orgasm during which further sexual arousal or orgasm is difficult or impossible.

I would probably call such a book trash or junk in the sense of low quality. Both of these are often used in referring to books, but interestingly, the word trash is more often associated with fiction, while junk is more often associated with non-fiction.

Here's a list of "trash novels".

A trash novel is a poor quality novel, a junk history book is a bad quality or inaccurate book.