Hikaru Shidou, Umi Ryuuzaki, Fuu Hououji are on a field trip to the Tokyo Tower with their respective schools. The girls are blinded by a flash of light and hear a voice calling for the Legendary Magic Knights to save Cephiro. They fall through the sky into another world, Cephiro. Once there, they meet Master Mage Clef. Clef explains, "In Cephiro, one's will has the ability to change reality for better or worse. The dark fears in people's hearts become monsters, while a well-intended wish can do miracles. One person, the Pillar, whose will is stronger than anyone else's, is responsible for maintaining through her prayers the well-being of Cephiro."

In the first story arc, the current Pillar, Princess Emeraude, has been captured by her high priest, Zagato. The three girls are charged with the task of saving the Princess.

Magic Knight Rayearth follows Hikaru, Fuu and Umi along with their friendly sidekick, Mokona, on their quest to save the mystical planet of Cephiro.

Legends say that when it snows, it is because the snow princess is crying. A collection of five tragic tales, all connected by the bond of snow. Shirahime-syo is CLAMP's tribute to traditional Japanese form and storytelling.

From Tokyopop:

Drawing on CLAMP's own personal experiences, The One I Love provides insight both into the creators' own lives, and into the oft-elusive concept of Love itself.

This intimate collection of short stories and essays doesn't skirt issues at the heart of the matter such as insecurity, honesty, distance, independence, age, and - of course - marriage.

This one-volume anthology comprises 12 individual stories, each of which consists of seven pages of manga and two pages of prose.

Watanuki Kimihiro is haunted by visions of ghosts and spirits. Seemingly by chance, he encounters a mysterious witch named Y?ko, who claims she can help. In desperation, he accepts, but realizes that he's just been tricked into working for Y?ko in order to pay off the cost of her services. Soon he's employed in her little shop- a job which turns out to be nothing like his previous work experience!

To honor CLAMP's 15th anniversary, CLAMP no Kiseki: The Ultimate Collection features full-color pages, exclusive material, 6 pages of new, never-before-seen manga, and limited-edition collectible figures!

From Be With You Scans:
Chie is a young girl with wonderful parents to look up to; her archaeologist father lives with her in Hokkaido, and her mother is a great scientist working in America. During a local cave excavation, Chie and her father discover Tyrannosaurus eggs, and they're about to hatch! This little girl becomes their mother, and does what she can to protect them from those who want to experiment on the little baby rex.

A new story begins with Watanuki and Yuuko, while guests wishes are granted.
(Source: LuffyNoTomo)

Sakura is the princess of Clow - and possessor of a mysterious, misunderstood power that promises to change the world. Syaoran is her childhood friend and leader of the archaeological dig that took his father's life. They reside in an alternate reality where whatever you least expect can happen - and does. When Sakura ventures to the dig site to declare her love for Syaoran, a puzzling symbol is uncovered - which triggers a remarkable quest. Now Syaoran embarks upon a desperate journey through other worlds - all in the name of saving Sakura.

300 years ago, a powerful warlord rebelled against the Heavenly Emperor. After killing the Emperor, the warlord crowned himself as the new Emperor, starting a cruel reign. But there is a prophecy: Six Stars will one day assemble and overthrow his tyrannical rule ...
Now, the ruler of the Yasha Clan has found Ashura, the last of the Ashura Clan, and together they set out to find the Six Stars and fulfill the prophecy.

Long-awaited continuation of the manga "Legal Drug" (Jap. "合法 ドラッグ"- "Gohou Drug"), by bestselling group CLAMP. It picks up from where the plot in Legal Drug left off, with a short prologue catching readers up to the main events of the previous series.
Kazahaya has always had the ability to see the memories of items and people that he touches. When he collapses in the snow, desperately clinging to life, he is rescued by Rikuou, who takes him back to Green Drugstore, a pharmacy dealing in more than just your everyday items.
Kazahaya finds himself working in the store, indebted to the owner, Kakei, for giving him a job and a place to lodge. Somehow, Kakei knows about Kazahaya's abilities, and soon he and Rikuou are sent on the occasional side job, involving the use of their unique talents.
As the story progresses, more is revealed about the mysterious pasts of the two main characters. Why did Kazahaya end up collapsed in the snow? Who is the mysterious girl that Kazahaya keeps seeing in Rikuou's mind, and what exactly happened to her?

One night, a man named Shuichiro Kudo comes across a tiny angel trapped on a tree branch. He frees her, and in return she offers to grant him a wish. However, Shuichiro is a successful doctor, with a home and everything he needed; he declined the angel's offer. The persistant angel, named Kohaku, refused to give up, stating that "some wishes cannot be fufilled by oneself." After settling in at Shuichiro's home, Kohaku reveals her mission to track down the Angel Master of Wind, Hisui, who has abandoned heaven. That is, if her devil rival and his two catty servants would let her leave long enough to do so...
(Source: ANN)

From Clamp no Lumiere:
Murikuri is the story of a popular pig, a pervert santa claus and his high school girlfriend, nice aliens and many more... It does not make sense and I would advise you to not try to understand it. Murikuri is to CLAMP what special halloween is to the Simpsons, a collection of short gags.

Akagi's one-shot drawn by CLAMP

From Tokyopop:

Kentaro and Takeshi are two freshmen who are periodically called upon to transform themselves into monster-battling superheroes, complete with capes and armor... but there's much more than meets the eye...

[From Condensation]:

About three girls who transform into rabbits to save people from the Stress Monsters.

The manga takes place after Sakura graduates from Tomoeda Elementary School, in her first year of junior high school. Sakura sees a mysterious dream, and an incident takes place.

Related Series:
Horitsuba Gakuen (Prequel)
Tsubasa: Reservoir Chronicle (Adapted From)
xxxHoLic (Adapted From)