 As a bookseller and apprentice printer he established a network of Italian connections that helped him act as a go between and publisher of Italian reformed thinkers and writers, such as Vermigli, Pier Paolo Vergerio, Jacopo Aconcio, Bernardino Ochino, Lelio Sozzini, Sebastian Castellio, Celio Secondo Curione, etc.He published the editio princeps of the original Greek text of the Enneads of Plotinus.He produced important editions of Machiavelli and Bodin, Guicciardini and Lodovico Castelvetro.