For Thoth decks:
A.
Book of Thoth by Crowley, although I would NEVER recommend this to a newbie. My tarot library would be incomplete without this book.
B.
Understanding Aleister Crowley's Thoth Tarot by DuQuette, and I would recommend this to a newbie. (The fact I literally STOLE this one off of Amazon at $1.99 is just icing on the cake!)
For relationship related readings:
C.
The Illustrated Book of Tarot by Jane Lyle. This is the book included with the Thunder Bay Marseille set. It's a cheap book which falls apart quickly and uses the RW for illustration, but is useful nonetheless. I still have the book even though many pages have long since loosened from the binding. And who would turn down the Marseille deck included in this set?
D.
The Lover's Tarot by Jane Lyle. This book is included with the Lover's Tarot Deck, which sucks as a deck, but I like the book. And I do mean the deck itself is dreadfully UGLY. Toss the cards in your compost pile, but definitely keep the book!
For Marseilles Decks:
E.
Personality, Divination and the Tarot, by Carl Sargent. I LOVE this book! You can completely ignore the first 58 pages, which describe the evolution of psychological theories. The rest of the book is a goldmine as far as the Marseille, in my opinion. His descriptions of the psychology behind the symbols on the cards make the cards come to life, and most particularly with respect to the Courts. This book includes meanings for reversals. Did I mention how much I LOVE this book? Like the Book of Thoth, my tarot library would not be complete without this book.
F.
Collins Gem Tarot by Rowena Stuart. Small, easy to carry, with direct, to the point meanings for both upright and reversed cards in the Marseille.
Qabalah related:
G.
Tarot and the Tree of Life by Isabel Kliegman
H.
Chicken Qabalah by DuQuette - not really tarot related but useful for those who relate Qabalah to tarot, particularly due to DuQuette's ability to make Qabalah easily understood.
Spreads:
I.
Illustrated Tarot Spreads by Pielmeier & Schirner. Very simple and easy to use book of tarot spreads in NUMEROUS areas. One spread per page, with diagrams and descriptions for each position in each spread. There is no extraneous or unnecessary information here and this book is EXACTLY what it purports to be.