By the Most Esteem'd Bard and Playwright William Shakespeare
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Guess what? I was going to write this entire review in Olde English, but decided not to at the last minute. You're welcome, and there's my random act of kindness for the day.
Now to business.

Hamlet is awesome. Hamlet is funny. Hamlet is tragic. Hamlet's sanity is questionable.
Hamlet is the prince of Denmark, son of Queen Gertrude and the late King Hamlet. He's ticked off for any number of reasons, but mainly because Gertrude married his uncle Claudius far too soon after his dad's funeral, because his dad's ghost keeps showing up demanding revenge and stuff, and because everyone in the castle is determined to spy on him. This is Shakespeare, so some people go crazy, some people act crazy, and some people get stabbed. I'm not sure I dare attempt any more analysis than that, but here's why I like it...

I can't claim to have read more than five or six Shakespeare plays (working on that), but of those I have read this is by far my favorite. The plot is complex for a play; false friendship and true love mingling with murder, deception, and political upheaval, but all these layers work together to form a compelling story line. The characters are interesting and multi-sided, their relationships, plots and counter-plots well developed. The complexity of the play nevertheless leaves room for varied interpretations. And above all, there is Shakespearean sarcasm. <3

Lastly, I have a really hard time not quoting this play to everyone I know.
"There are more things in Heaven and Earth, Horatio, than are dreamt of in your philosophy"
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Words, words, words.
I refuse to attempt any scholarly commentary on the themes of Hamlet, but you can borrow my copy.

for: Shakespeare and David Tennant fans
Content rating: 3/5 Murder, incest, unfaithfulness, hatred and revenge, deception, poisoning, suicidal themes...you know. Shakespeare.
My enjoyment: 5/5 'Tis a knavish piece of work, but what of that?

 
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by Charles Dickens

This is, so far, my favorite of Dickens' novels. (Save perhaps for A Christmas Carol, which is short and sweet.) I'm guessing you're wondering what the two cities are. What do you think? 
I'll give you two hints: British lawyers and the French Revolution.
Forgive me, but I have generally found Mr. Dickens' books to be rather slow in plot and not always capable of holding my interest. (Although it is too a possibility that I possess the attention span of highly caffeinated chipmunk). Neither do I regard most of Dickens' characters as the brightest bulbs on the string.
Not so with this book.
This isn't to say that the plot moves along with a tenth the speed of, say, a James Patterson novel, but for Dickens I really can't complain. It's highly interesting, too, no classic orphan-boy theme here. The cast of characters includes a bunch of British lawyers, a prisoner and his daughter, some French aristocracy, and a whole lot of irritated Frenchmen and women. On the whole, they provide a more intriguing and entertaining plot than you could generally trust any number of British lawyers to do. 
As the story opens, one of the lawyers accompanies a young lady to France to rescue her father from delirium, following his release from a long imprisonment. Here, the stage is already being set for a good revolution, as the aristocrats treat the commoners like dirt and the peasants mutter ominously amongst themselves. The young lady, Miss Manette, effectively calls her father back to life. Later, living in London, the two make the acquaintance of the handsome Charles Darnay, who does his best to put his mysterious past behind him. They also meet the talented but miserable, directionless Sydney Carton, who has a curious connection to Darnay. And with this cast of characters (did I mention the British lawyers?) Dickens leads us from peaceful London into war-torn, bloody Paris, and hopefully out again.
As well providing an excellent storyline, this book captures very well the savage passions surrounding the French Revolution. Someday, I hope that someone will explain to me why those people were so proud of their revolution. It seems to me that they made a terrible mess of it, and unfortunately I mean that in a literal sense. Nevertheless, I liked this book a lot. Read it. 

for: adults and teens
Content rating: I'm gonna say 4/5. Plenty of violence pertaining to the revolution, but I don't recall anything else objectionable.
My enjoyment: 4/5