Hobson - Troubleshooting CentOS - paperback or softback - E555z

Kapranoff - Nginx Troubleshooting - paperback or softback - E555z

Mills - vCenter Troubleshooting - paperback or softback - E555z

Uphill - Troubleshooting Puppet - paperback or softback - E555z

Reneenriquez - Restfuljavawebservicessecurity - paperback or softback - E555z

Knight - Kennedy Assassination - paperback or softback - E555z

Crist - Mastering OpenVPN - paperback or softback - E555z

Celant - Giulio Paolini - paperback or softback - E555z