My thanks go to
- Sofie Beier for providing me with her typefaces for some of my illustrations
- Jeanne-Louise Moys for sharing illustrations of her test material and reading a draft
- David Březina - for answering my queries on typefaces, terminology, and much more, and making this online version happen
- Carlos Pérez Cerón who did an amazing job in interpreting my suggestions for illustrations and more
- María González de Cossío for sensing that this project was just what I needed and who was patient and supportive throughout
- Kevin Larson for his detailed read and helpful feedback on the first version
- Johannes Neumeier for the typesetting and development of this online version of the book
- Tania Chacana for additional edits to the Spanish translation
- Google Fonts for financial support.