Thomas A. Limoncelli

Thomas A. Limoncelli

Time Management and System Administration author/trainer

  • @yesthattom

New York, New York

Areas of Expertise:

  • time management
  • IT policy
  • speaking
  • training
  • writing
Thomas A. Limoncelli is the author of O'Reilly's Time Management for System Administration. He is an internationally known author and speaker on many topics, including system administration, networking, security, and grassroots political organizing. A system administrator since 1988, he now speaks at conferences around the world on topics ranging from firewall security to time management. He has worked for Cibernet, Dean For America, Lumeta, Bell Labs/Lucent, AT&T, and Mentor Graphics. He and Christine Hogan co-authored The Practice of System and Network Administration (Addison Wesley). He holds a B.A. in Computer Science from Drew University in Madison, New Jersey, USA. He publishes a blog on

Time Management for System Administrators Time Management for System Administrators
by Thomas A. Limoncelli
November 2005
Print: $24.95
Ebook: $19.99

"This book is worth your dollars and your time. Even if you are skeptical of his system, the book is worth a read for ideas and insight. It should be given to every new sysadmin when hired, and anyone who manages sysadmins. I plan on recommending it to my boss and colleagues."
--Martin Gehrke, SNAPGH