I'd certainly echo Freddy's comments - this is a very worthwhile tome (not tomb!!) of dark entertainment.
A little on each of the contained effects:
Tsarology (is this a typo?) – A four spec combined Tarot reading, where the reader correctly identifies which querent chose which card. As a finale – the fourth querent is read blind, before card is revealed, and reader correctly identifies which card was selected.
Revelations – A very nice Tarot Deck vs. Biblical warning of the final days, where three major signs of Judgement Day are accurately echoed in three random spectator-selected Tarot cards.
The Mark of the Beast – A clever spin on product barcodes, that ties in with the number of the Beast; your spectators will become avid barcode readers!
This effect, I must say, is more of a curiosity than a full-blown routine. That said, it's worth its place here, as it can be well-used to enhance other routines, or as a convincer in conjunction with everyday items you are using; there's plenty of scope to introduce this in a variety of ways
And You shall be Forgiven – The Jewel in the crown of this collection, without a doubt; this is a very nice method for revealing and cleansing (or perhaps punishing, if you’re in a truly evil mood!) a spectator’s inner sin.
This involves a chalice/incense burner, flash paper, and a very sneaky peek method, which can be easily be used with any number of other effects .
If your presentational skills are good, and you can find some nice props to use, this will play BEAUTIFULLY.
All in all, this is a really nice collection (in a Kindle-friendly format, too!) of pieces of dark beauty, which will sit nicely in any bizarre performers set. If shadows and spooks are your thing, this is a must-read for the price.
An easy 8.5/10 (losing a point or so for the whole Angels/Angles and a few other nit-picky proofing errors - I'm so awkward

)