Who gets to write book reviews for academic journals?
I am sure this varies but is most likely one of the following (in some kind of falling order):


you are a well-known and respected researcher/educator in the field

you have recently written material that are key to the book (perhaps referenced in it)

you are known not to know the word &quot;No&quot; (makes the editors work easier)

you are friends with the editor (makes his/her life easy)



I doubt many editors will necessarily take you up on an offer (depending which category you may fall into) but I am sure some might be fine with it. It never hurts to contact an editor and express interest. You should then provide a background for why you should be considered for such a task.