I must admit I am almost biased, since I am a great fan of Doreens, personally I would say that you must be spiritually savvy already to connect to these cards, because there are chakra and mediumship cards in the deck, the reader should at least be familiar with the chakras, law of attraction/ intent, indigo people (kids and adults), cutting cords etc. Because the cards are specific and if you know about these topics you can relay it to the person you are reading for in a way they will understand if they have never come across these topics. I did my first spread without the book and have to say for me personally they were accurate, I then used them on some friends and they also hit the issues that mattered. The book is great too, with detailed information, but you also should use your intuition, because the cards do speak to you.
The artwork is fantastic, on the back they have the hands with the light coming from them or healing energy. On the front they have wonderful drawings and a little message to accompany the card.
I would say these are for intermediate to advanced readers who are well connected and spiritually wise, others may disagree. In all I really like them a lot, very powerful issue and healing cards that heal and put you on the right path if you are open to that. I love them.