Jacob Perkins is the author of Python 3 Text Processing with NLTK 3 Cookbook, creator of Python NLTK Demos and APIs, and is currently CTO of Fletch.ai. You can also find him on github, linkedin, and twitter.
Previously, he worked on Seahorse, a GUI for GnuPG, rewriting it for the GNOME 2 desktop, and laying the foundation for it to be included in the standard GNOME distribution as the Encryption Key Manager.