on harpercollins.com
yes. i have read Cats of the Clans and Code of the Clans. They are all realy good. Teh book was published a while ago so the characters are old and not all of the cats are there (the newer ones anyways) . You could also go to warrioscats.com and you can ask Erin Hunter your questions.
"Tigerstar and Sasha: Return to the Clans" is already available. It is a manga series by Erin Hunter focusing on the story of Tigerstar and Sasha's return to the Clans.
You can read the Code of the Clans online on various websites that host Warrior Cats fan content such as the Warriors wiki or fan fiction sites. It is also available for purchase as a book in the Warriors series by Erin Hunter.
The four clans in the book series Warriors by Erin Hunter are ThunderClan, ShadowClan, RiverClan, and WindClan. Each clan has its own territory, traditions, and leaders, and they all follow a code known as the warrior code.
The destiny of the Warrior cats Clans is to protect their territories, uphold the warrior code, and ensure the survival of their Clans through unity and cooperation. They strive to maintain the balance of the forest and their way of life despite facing various challenges and conflicts.
There are three authors, actually. Cherith Baldry,Victoria Holmes, and Kate Cary. They use a code name of Erin Hunter. Not exactly a 'code' word but one name instead of three, 'cause three names would be a hassle... especialy to libraries. XD
"Code of the Clans" has approximately 176 pages in paperback format.
The ISBN of Code of the Clans is 978-0061660092.
Code of the Clans was created on 2009-06-09.
Erin Hunter as written in the warrior series: Into the Wild, Fire and Ice, Forest of Secrets, Rising Storm, Dangerous Path, The Darkest Hour, Midnight, Moonrise, Dawn, Starlight, Twilight, Sunset, The Sight, Dark River, Outcast, Eclipse, Long Shadows, Sunrise, The Fourth Apprentice, The Rise of Scourge, Graystripe's Triloligy, Ravenpaw's Path, Tigerstar and Sasha, Cats of the Clans, Secrets of the Clans, Code of the Clans, Firestar's Quest, and Bluestar's Prophecy Erin Hunter has also written the seekers series: The Quest Begins, Great Bear Lake, Smoke Mountain, The Last Wilderness, and Fire in the Sky. There is a rumor of a 6th book called Spirits in the Stars. And possibly a 7th book (i don't know how people hear this).
I say because of the books about how animals make a secret code : Only kill to survive
In secrets of the clans, code of the clans, and on the warrior cats website: http://www.warriorcats.com