On occasion I will write reviews on certain books I feel impressed to share that I've either read from my own shelves or from other sources. I will make sure to mention that fact.
Otherwise, the books I review are sent to me from the publisher/publicist or author. I receive no compensations for the review, whether it is positive. Any contests offered on behalf of these books have no sway on my thoughts or opinion. It is my belief to be honest in every way.