Neymar was unveiled at the Nou Camp yesterday.
"The great players always understand one another. Leo will make Neymar better and vice-versa. It's a team game and the sum of all helps the club win," said Iniesta.
"He's coming to the best place that he could go to. One of the best young players is coming and that's what we all wants.
"He will contribute a lot, he's a player with outstanding talent and quality. He can unsettle opponents, score goals and give spectacular performances at a club which is ideal to continue growing.
"It's great news that we can count on him. Surrounded by the people that he's going to have here, he will get better all the time."