I know I shouldn't judge a book by its cover, but when I open a public library book and the scent of incense rises off of it, I'm pretty sure it's going to be dippy-hippy. Sometimes this can be a good thing, but usually it isn't. I'll admit, I'd checked out the book because of the author is a gay Wiccan, and I thought the writing would be good (or, in other words, address Wicca through the lens of sexual orientation and gender-bias). Alas, it was a Wicca 101 book filled with vague references to any spiritual tradition you'd care to name and a lot of personal anecdotes.
On the minus-side, it tried to be scientific without actually using the scientific method. The most egregious example was when it encouraged the reader to practice "cloud busting" as a measure of magickal/psychic ability and then followed up by saying that cloud busting doesn't always work because the universal powers may need a particular cloud or that busting that particular cloud isn't for The Higher Good. I might have skimmed over any instructions to write "divine intervention" into the sources of error section of experiment write-ups in one's Book of Shadows, but I don't think so.
Also on the minus-side, it skirted the edge of Prosperity Wicca and treating the cosmos as your personal mail-order catalog. Whenever I read prosperity twaddle, I am always reminded of Starhawk's comment that no amount of staring at green candles to attract a job is going to work unless you also go out and pound the pavement with your resume.
On the plus-side, it did suggest a Pavlovian technique of using unobtrusive hand gestures, or mudras, as a physical stimulus to aid in dropping into a ritual state of mental focus. I think this could be useful for staying focused in stressful or emergency situations.
In other library news, I checked out some books on novel writing. I was hoping that the first one I've opened would be more about a novel's structure or characterization (or at least The Hero's Journey), but it seems to be more about marketing... which isn't too bad of a thing, but it's really bringing the tension between Art and Craft to the forefront. One piece of advice I didn't want to hear -- as a writer who likes to play with ideas and who likes to play with words -- was about how writing shouldn't be too challenging to the reader. I know you don't want to confuse the reader, and clashes with my desire to fashion a beautiful, whirling, kinetic sculpture of words. Oh well.