The document outlines the top six iOS libraries that every iOS developer should consider using, including Alamofire for networking, AFNetworking for easier URL session handling, and ObjectMapper for JSON data mapping. Additionally, it mentions SDWebImage for asynchronous image downloading, SwiftyJSON for better JSON data handling, and MBProgressHUD for managing UI loading indicators. The article emphasizes the importance of choosing libraries that address specific development challenges to enhance the application development process.