Look up your author in these reference books. Yes, real books on those moveable shelves in the corner downstairs . . . exciting stuff!
BIC Searching Tips: Watch your typing. Keep in mind a person's name can appear differently in different places. Some of these writers used aliases, for example! Explore all the different forms of available information on your person. Some will come from biographical reference books. You could also find articles in magazines and newspapers. These articles could be reviews of books, interviews, obituaries. Explore!
GLS Searching Tips: You want to do a Person Search, so begin by clicking on that in the Tab or in the Black Bar. If you get Results, they could be of a variety of sorts. Select Biographies under Content Types in the column to the right:
You can look for reviews of your book or of all books by that author. Watch the dates of coverage! Not a whole lot of fulltext for the older books is available online, but some is. And, Book Review Digest contains some snippets & excerpts.