Just had a quick question. I have a method in a Class that sorts an array, gets information and then returns an NSArray with this code. Code: NSMutableArray *itemsFromSkill = [BoilerPlateCode returnItemsForSkill:itemStringLabel withItemList:skillsListDict]; I discovered that I need to add object to the new array called "itemsFromSkill" so I changed it to an NSMutableArray. Should I go back to the method that sorts and returns an NSArray and have it return an NSMutableArray, or does it matter? I remember a while back reading something about this and this is not the correct way but I can't remember? I think I would need to convert an NSArray to an NSMutableArray with a method like makeMutableCopy or something. It' not a big deal. I was just wondering. Thanks.