- * Stephen R. Covey: The 7 Habits of Highly Effective People. ISBN-13: 978-0743269513 (or in German: Die 7 Wege zur Effektivität, ISBN-13: 978-3897495739)
- * <strike>Dietmar Wätjen: Kryptographie. Grundlagen, Algorithmen, Protokolle. ISBN-13: 978-3827414311</strike> got it.
- * <strike>Günther M. Ziegler: Darf ich Zahlen? Piper Verlag, München 2010. ISBN-13: 978-3492053464</strike> got it.
-
-Hardware
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-* An external backup drive (hard disk, USB/eSATA(p), 1 TB or more)
-* Arduino (kits) of any kind
-* or, in general, any electronic kit for soldering (Mood Lamps, Blinkenthings, etc)
-
-Other Things I Could Make Use Of
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- * A [Go](https://en.wikipedia.org/wiki/Go_(game)) set
+ * Already got “The Art of Computer Programming”, Volume 1.
+ * John Napier: Hands. Princeton University Press, 1993. ISBN-13: 978-0691025476
+ * Jeffrey Friedl: Mastering Regular Expressions. O'Reilly 1997, ISBN 1-56592-257-3