The Databooks—commonly known as Fanbooks (ファンブック,Fanbukku?) or Character Books (キャラブック,Kyarabukku?) in Japan—are a series of encyclopedia-like books meant to supplement the One Piece manga, mostly by compiling facts and statistics on plot elements, characters, and the overall setting. Typically, they also contain a number of color spreads, compilations of various cover arcs, and behind-the-scenes material (including Eiichiro Oda's conceptual and preliminary sketches) as bonuses.
So far, six databooks have been published in Japan. None have been given professional English translations.
Luffy: "Listen, hey you, ever heard of this? Panda Island. I heard that if you go there, you'll face tons of panda-like creatures. The ruler of that island is a wrestler. A long time ago I heard people at the bar in my village say it's true! The seas sure are vast."
Zoro: "There are lots of guys that go "I wish I were a devil fruit user". Areya one of those guys? Rumor says there's this place called "The Devil's Greengrocer". They say that's where you can get your hands on one of those things. If you wanna try one, try looking for that store. Well, not that there's any proof that those rumors are true."
Nami: "Before navigation existed, I heard people could only sail in water where land was somehow visible. When you're sailing and you look around to see that you're surrounded by water, it makes you feel insecure, doesn't it? From then, people found a landmark that would follow you around no matter where you go. The 'North Star'. There was even an era when people actually believed the compass pointed toward the 'North Star' at one point. I'm glad I was born into this era!! Because I can travel anywhere to go and meet all the beautiful treasures around the world ♥"
Usopp: "Don't you think that there's a lot of pirate ships with animals for figureheads? A long, long time ago, when ships were first made, people would have "launching ceremonies" where they would sacrifice animals for good luck. The animal figureheads are rooted from the times when they used to hang those sacrifices on the ships."
--so in other words, for Merry and Sunny... a sheep and lion needed to be sacrificed!!! Yikes~~!!
Sanji: "You know my leg attack "Diable Jambe"? In the chef's world, there's also something called "Diavolo Cuisine". It's made using strong condiments like salt, pepper, and chili sauce and when you eat it, they say it tastes so hot that it feels like you're being tortured with fire by a devil. Any shithead on board our ship who talks back to me or steals food from the fridge gets "Diavolo Cuisine" for dinner."