I decided to pull out Mr. Webster and my Synonym Finder to determine the meanings of the words in my title. Here goes:
1. Review - As a verb it means to amend or alter, to review an opinion. Synonyms: critical article, critique, criticism, commentary, editorial, evaluation.
2. Recommend - to present as worthy of confidence, acceptance, or use, commend. Synonyms: commend, mention favorably, promote, speak well of, put in a good word for, approve, sanction, condone, support, endorse, suggest, offer, propose, warn, caution.
3. Endorse - To express approval or support, especially publicly. Synonyms: approve, give one's stamp of approval, sanction, warrant, seal, vouch for, stand behind, confirm, authorize.
4. Critique - an article or essay evaluating a literary or other work. Review. Synonyms: review, notice, report, article, editorial, essay, blurb, commentary, analysis, pan, slam, swipe.
A critic is a person, who judges, evaluates or criticizes literary or artistic works. The definition of a reviewer is similar: a critic, commentator, evaluator, judge, connoisseur, assessor.
Looking at these definitions, would you consider yourself more of a reviewer or one who recommends a good book? I stand in the second camp: I recommend books I've enjoyed.