In tarot readings using the Zodiac Tarot Deck & Book Set, the significance of zodiac signs lies in how they provide additional layers of insight and symbolism to the reading. Each zodiac sign conveys unique traits, energies, and archetypes that can influence the interpretation of the cards drawn. By incorporating zodiac signs into the reading, it allows for a more personalized and detailed analysis of the querent’s situation, helping to uncover deeper meanings and connections between the cards and the individual’s astrological profile.