It is really too bad that Spirits, Fairies, Leprechauns, and Goblins: An Encyclopedia (1996) is no longer in print (and thus only available used from sites like Amazon Marketplace and ABE Books). For yes, Spirits, Fairies, Leprechauns, and Goblins: An Encyclopedia is a nicely extensive and warmly recommended by me introduction to various mythological and folkloric spirits, fairies, elves, angels etc. from multiple areas of the world, from diverse and global cultures and traditions (with the A to Z section presenting the names of the featured entities alphabetically, but that in the appendices for Spirits, Fairies, Leprechauns, and Goblins: An Encyclopedia, author and compiler Carol Rose also provides names according to specific subjects, so that for example, Rose shows country lists, lists of dwarves, demons, beings associated with the weather, astronomy, forests, fields etc.).
And indeed, I do really textually appreciate how in her introduction to Spirits, Fairies, Leprechauns, and Goblins: An Encyclopedia, Carol Rose explains that her collection of presented beings are often known as “little people” not so much due to their small stature but because they are generally not considered to be deities and thus exist on a subordinate level to gods/goddesses, so that aside from diminutive entities such as dwarves, fairies, brownies, leprechauns, kobolds etc. Rose with Spirits, Fairies, Leprechauns, and Goblins: An Encyclopedia thus also shows angels, elves, djinns, goblins and other similar spirits who in fact can be and often are large and sometimes even gigantic.
Now just to point out that what Carol Rose textually provides in Spirits, Fairies, Leprechauns, and Goblins: An Encyclopedia is not intensive, with all of the entries being but short and very concise general introductions. But yes, if readers should want and need more information, there is not only a very detailed and extensive bibliography for Spirits, Fairies, Leprechauns, and Goblins: An Encyclopedia, no, Rose also in EACH AND EVERY featured entity lists the books from the bibliography where this can be found (or rather the numbers, as each bibliographic inclusion is numbered). And yes, this especially is to and for me, is in my humble opinion both really useful in and of itself and also a majorly nice and majorly appreciated added bonus, as more often than not folkloric and/or mythologic dictionaries and encyclopaedias do not bother with bibliographical links and indeed often do not even include any sources at all, and with my one and only complaint about how Carol Rose is presenting her bibliography for Spirits, Fairies, Leprechauns, and Goblins: An Encyclopedia being that she should also be listing primary sources like The Bible, The Qur'an, John Milton’s Paradise Lost etc. in the bibliography and not just mention them in the text, in the specific alphabetical entries (but well, for me, this is such a hugely minor and personal issue that it does not change my five star rating for Spirits, Fairies, Leprechauns, and Goblins: An Encyclopedia).