In the context of The Tattoo Dictionary: An A-Z Guide to the Secret Language of Tattoos by Trent Aitken-Smith Amazon.com

Understanding the origin of a symbol (like a Polynesian Tatau or a Japanese Hannya mask) helps you avoid cultural misappropriation.

If you are looking for a comprehensive guide to body art symbolism, The Tattoo Dictionary

Professional tattoo artists use the PDF on their iPads during consultations. Instead of flipping through a physical book, they can screen-share the PDF in Procreate or Zoom, zooming in on the "Dagger" entry to show the client the traditional meaning (betrayal/ protection) versus the modern interpretation (masculinity).

If you are looking for a digital version to browse on your device, several official and archival options exist: