Ok, I'll post everything I know about Brook here.
Name: Brook (Maybe also spelled Brooke)
Nickname: "Gentleman Skeleton", "Only Bones", "Just Bones", "Hanauta" (Hummer/Crooner)
Age: Over 50 (Age he died + decades he has been dead)
Height: About 8.5-9 feet
Weight: Very light (Bones weigh 15% of one's body weight, so he could be about 27-30 lb/12-13 kg)
Occupation: Musician
Fighting Style: Fencing
Weapon: A slender double-edged sword disguised as a cane.
Devil Fruit: Yomi-Yomi no mi, the ability to come back to life only ONCE after dying
Special Abilities: Brook cannot die by any natural means or injury. Due to losing most of his weight, but keeping his original strength, he can move extremely quick and jump really high. Also, he cannot sink in the water, as bones can float. Can also tell stories really well.
History: Many decades ago, Brook was alive and well, until he died along with his crew on his pirate ship in the Florian Triangle. Thanks to his devil fruit, he did not pass on, but was allowed a second chance at life. His soul found his body a year later, only to find it decomposed and nothing but bones with an afro. However, because of his new form his abilities as a fighter has improved.
Quirks: Brook considers himself very polite and usually is in speech, yet he shows his hypocrisy by acting rude in very ridiculous manners almost immediately. He says how beautiful a girl is one second and asks to see her panties the next, he says he is patient for food only to scream for it after saying so, the list goes on. He has a disticnt laugh that is famous for being said by pirates, that is "Yohohoho!" He is also often seen drinking from a teacup. He also has a prominent crack over his right eye socket. Ironically, he is easily frightened by ghosts.
Fighting Information: Being lightweight, Brook can move blindingly fast and jump far and high with ease. He can slash his foes without them realizing it seconds later, when the effect is greatly noticable. His swordstyle resembles fencing by the way he holds his sword and attacks with it (see Chapter 458). Also, it seems he relies on both edges of the sword, as when his shadow counterpart Ryuuma knocked out Nami, Usopp and Chopper, he hit them with the back of his katana, which is blunt;Brook performed the same exact attack on Captain Talaran, there is an obvious cut.
Brook is known to have one named move called "Hanauta Sanchou Yahuza Kiri" which I have loosely interpreted as 3-Part Crooning Headsplitter (literally, Crooner 3 Pieces Notch Head-cutting), Crooner referring to himself and Headsplitter referring to the vertical slice down the head and a side reference of a loud noise would normally cause and "earsplitting" effect, Brook's crooning causes a "headsplitting" effect. Cheesy, I know. As for the 3-parts, maybe its a singing style? That part still confuses me.