给一篇英文文章中的单词分组，使得每组中的单词都有相同的意思和用法。
As the pandemic raged on, many people found solace in reading. They turned to books to escape the anxiety and uncertainty of the present moment. But what kind of books did they turn to? According to a recent global survey, crime novels were the most read genre during the pandemic, followed by thrillers and romance novels.
Words related to reading: 
- reading
- books 
- genre 

Words related to pandemic: 
- pandemic 
- uncertainty 
- anxiety 

Words related to types of books: 
- crime novels 
- thrillers 
- romance novels