Marcello Duarte

Marcello is head of training at web and software development company Inviqa, and an active contributor to open-source projects. He is the co-creator of PhpSpec, a popular BDD-flavoured testing and design tool for PHP developers, and author of Phunkie. – a functional library containing most common functional structures and patterns found in Haskell (for free), based on the abstract algebra theory of categories.