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2025

The Hidden Language of Symbols

2022

Symbols in Art

2020

Beneath Yggdrasil's Shadow

2018

Halloween Night

Trick or Treat

2015

Bones III

2014

Rules Without Rulers

The Possibilities and Limits of Anarchism

2014

Western Ghost Stories

2014

Three Slaves of Rome Book One

2011

RHS New Gardening

How to Garden in a Changing Climate

2007

Imperfect C++

Practical Solutions for Real-Life Programming

2004