I am completely new to Apache Cassandra. I just decided to learn it out of my own interest. I purchased the Kindle edition of this book 3 days back. Till now I have completed 5th chapter and I must say that after a long time I am reading such a good book. Contents are perfectly organized. Lots of real life examples and solutions. No unnecessary description or irrelevant data. Language and presentation style is so simple that beginners will love to read it. I am completely satisfied with this book.
The book covers Cassandra features and CQL very well. Book also touches on internal workings of Cassandra.
Book doesn't touch any programming language API available for for communicating with Cassandra. It would have been good if one additional chapter has been dedicated to programming language API like Java.