Handseals, handseals, I rack my mind trying to figure out all the information I know about handseals and can conclude this. Handseals in a certain order can produce jutsu, (with practice of course). The faster you can weave, the less time it takes to develop the jutsu. Specific handseals deal with a specific element. There are twelve basic handseals for the twleve zodiac animals. Bird, Dragon, Boar, Dog, Ox, Tiger, Serpent, Rat, Ram, Hare, Monkey, and Horse. The more advanced you get the less handseals you will have to weave in order to use the jutsu, examples being sasuke with chidori, Naruto with shadow clone jutsu, Jiraya and the rasengan and Orochimaru when he summons the sword out of his throat when he can't use his hands due to sarutobi sensei. Hmmm What else, oh handseals are the basis of ninjutsu, without handseals there is little to none ninjutsu