Open Source

Hereditary                                      

Independently published

OSINT Techniques: Resources for Uncovering Online Information

Vermilion

The Source: Open Your Mind, Change Your Life (Vermilion)

Independently Published

Open (Source) for Business: A Practical Guide to Open Source Software Licensing - Third Edition

Apress

Fostering Open Source Culture: Increase Innovation and Deliver Faster with Open Source

O'Reilly Media

The Cathedral & the Bazaar: Musings on Linux and Open Source by an Accidental Revolutionary

Lulu.com

The Architecture of Open Source Applications    

Wiley

Deep Dive: Exploring the Real-world Value of Open Source Intelligence

Packt Publishing

Open Source Projects - Beyond Code: A blueprint for scalable and sustainable open source projects

Einaudi

Architettura open source: Verso una progettazione aperta (Vele)