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Releases by Steffen Hartmann

Cover for Steffen Hartmann · Software as a Product: Bridging the Gap Between Technology and Product Development - Addison-Wesley Signature Series (Vernon) (Paperback Book) (2026)
Paperback Book
1st edition
Software as a Product: Bridging ...
Steffen Hartmann

Release August 6, 2026

Cover for Steffen Hartmann · Angel Thinking: Consciousness, Meditation and Human Destiny (Paperback Book) (2025)
Paperback Book
Angel Thinking: Consciousness, M...
Steffen Hartmann
Cover for Steffen Hartmann · The Michael Prophecy and the Years 2012-2033: Rudolf Steiner and the Culmination of Anthroposophy (Paperback Book) (2020)
Paperback Book
The Michael Prophecy and the Yea...
Steffen Hartmann