I've come across with the phrase below:
That’s pretty much all I read.
I know "pretty much" means almost completely
But I don't understand the whole meaning of the phrase.
Does it mean
All I read is aproximately that book?
The fuller text:
Perez enters the room and speaks to her in a low voice. “I’ve just remembered something. It might be important.” She nods. “You wanted to know if I or Wilcox had ever heard of the author Candice White. I thought the name sounded familiar but I couldn’t place it. I thought maybe it was someone my wife read. She reads a lot of books.” Sorensen nods her head again impatiently. “Yes?” “But actually I’ve read one of her books. She wrote a true crime book a few years ago that I quite enjoyed. That’s pretty much all I read.” “Is that so?” Sorensen says. “What was it called?” “I don’t remember exactly, but it was about that school principal who murdered one of his students.”
An Unwanted Guest by Shari Lapena