Book reviews are written in?
present tense
past tense
future tense
which ever tense the reader chooses?
I believe its in the present tense but I am not 100% sure.
Right. Book reviews are written in the present tense. Check out this review from The New York Times.
http://www.nytimes.com/2008/01/28/books/28maslin.html
Book reviews are typically written in the present tense. This is because when reviewing a book, the reviewer discusses its content, themes, characters, and writing style as if they are currently experiencing or engaging with the book. Using the present tense creates a sense of immediacy and allows the reader to understand the reviewer's perspective in the present moment.
To confirm the answer or get a better understanding, you can refer to reputable sources on book reviewing practices or style guides for writing reviews. These sources often outline the conventions and expectations of reviewing books, including the use of present tense. Additionally, studying examples of professional book reviews can help you see how experienced reviewers approach tense usage.