I liked parts of this but I'd be hesitant to recommend it to beginners. First and foremost, the mythology was completely all over the place. "Celtic" gods is an inaccurate descriptor because "Celtic" refers to a wide range of cultures, and this book was conflating Irish, Gaulish, and other deities. It also referred to Irish deities of aspects of each other - such as Donn being an aspect of An Dagda (who in turn was an aspect of... Jupiter?). Donn and An Dagda aren't even members of the same race. From Lebor Gabála Érenn, An Dagda is a member of the Tuatha Dé Danann, and Donn is a member of the Milesians who conquered Ireland after the Tuatha Dé Danann. In fact, he was fated never to step foot on Ireland. It also uses conventions such as "Celtic god of..." and "Irish god of..." when these are not applicable to Irish deities, who have many complex, multi-faceted aspects (I'm thinking specifically of the repeated reference to Aonghus as the "Celtic god of love." Aonghus is Gaelic.)
The information on folk practices was fascinating, but it bounced back and forth a lot where in one sentence you'd be learning about Irish, then the next Welsh, then back to Irish, then Scottish, so it made me a little dizzy. On top of that, it references Robert Graves who is... a nutter and Peter Beresford Ellis whose scholarship tends to be questionable.
Definitely going to save this for my own reference, but if you're looking for mythology, you should start by reading the source material yourself for sure.
I honestly struggled through this book and didn't finish the last few pages. the writing is dense and unpolished, the payout is painful, there are a lot of assertions that feel very stretched especially in the last section about ogham and honestly it wasn't enjoyable to read.
A book that weaves together science with Irish myth and folklore, presenting trees as collaborators and not just utilities. The book documents the (native) trees of Ireland and their status in relation to the Ogham alphabet and to the calendar used in pre-history in Ireland. All of this is accompanied by brilliant illustrations by Grania Langrishe.
Some of the sections on individual trees are repetitive. As a result of the similarities in many of the myths or associated folklore, the trees become confused with one another (and with different times, where one might have changed meaning after Christianity, for example). Still, this is thoroughly researched and includes Mac Coitir's theories on the tree link to the Ogham alphabet, a thorough and well justified series of statements.
The wisdom of the past, often almost lost to us, is so fascinating to rediscover, reassess, and reimplement. This book on the place of trees in Irish life, history, the calendar and folklore, is one such fascinating rediscovery of ancient knowledge. A recommended read for sure.