FOR THOSE WHO'VE NEVER HEARD OF THE SERIES, quote from the wiki article.
Warriors is a series of children's fiction novels published by HarperCollins written by Erin Hunter, a pseudonym used by authors Kate Cary, Cherith Baldry, and Tui Sutherland; the plot is developed by editor Victoria Holmes.[2] The series follows the adventures of four Clans of wild cats in their forest homes. The four Clans are ThunderClan, WindClan, ShadowClan and RiverClan. SkyClan, the long-forgotten fifth Clan of the forest, is later introduced in the stand-alone novel Firestar's Quest.
There are currently four series, each containing six books. The first, Warriors (often called "Original Series" to differentiate it from the later series), was published from 2003 to 2004. Warriors: The New Prophecy, published from 2005 to 2006, followed the first series, chronicling the Clans as they move to a new home. The third story arc, Warriors: Power of Three, was published from 2007 to 2009. The current series, Warriors: Omen of the Stars, began with The Fourth Apprentice, which was released on November 24, 2009, and continues where the third series left off. A fifth series has been requested by HarperCollins. Major themes in the series include forbidden love, nature versus nurture, the reactions of different faiths meeting each other, and characters being a mix of good and bad. The authors draw inspiration from several natural locations and other authors such as J. R. R. Tolkien, J. K. Rowling, and William Shakespeare.
Other books have been released in addition to the main series, including three lengthier individual books entitled Firestar's Quest, Bluestar's Prophecy, and SkyClan's Destiny. Four field guides and several volumes of original English-language manga, produced as a collaboration between HarperCollins and TOKYOPOP, have been published as well. In addition to the books, the authors have also written two short stories and two plays. The series has also been released for Amazon's Kindle and translated into several languages. In addition, the series has a website, which features games, promotional videos, quizzes, a message board, and news.
Warriors has received mostly positive reviews, but has also been criticized for having a confusingly large number of characters. Critics have compared it to the Redwall series, though commenting that the series is less elegantly written. Although nominated for several awards, Warriors has yet to receive any major literary prizes. The series has also reached the New York Times Bestseller List, and has found popularity in places such as Trinidad and China.
It's very likely only for those who may be interested in cats. It seems a bit far-fetched and strange at first, but most novels tend to start like that. At least to me. Though I'm still curious if anyone on this forum might be familiar with it. =3
I think popularity got the writers a bit drunk. All the silly characters being ridiculously silly put me off of those books. I got to Warriors: The Power of Three, Eclipse and stopped. Things (this is going to sound stupid, stay with me) got unrealistic. They wouldn't react like they did, and things should have had more solid reasons backing them. As it is, its hard to believe. (Shut up, I know the entire idea of cat clans is hard to believe. I can dream, can't I?) 
