This book replaces the older version, "What Do We Know About The Oghams?" This book is now out of print, but a new and improved expanded version will be available by July. It is titled "Ogham: The Secret Language of the Druids." It is being published by ADF Publishing.
This book is based on the "Auraicept Na N-éces: A Scholars' Primer" edited by George Calder in 1917. It starts out with a short history of the Oghams, discuses how the Oghams were used and then goes into a detailed description of the Tree Ogham. Included are 10 associations for each of the first 20 letters of the Tree Ogham. These associations are based on the other Oghams given in the book and the rules that were used to establish associations when the Ogham was first developed.
The other 121 Oghams discussed in the Scholar's Primer are also talked about in detail with pictures or drawings of each of them.