That's what gave them a feeling of power and control, and the thrill of deception only added to the fun of it for them. It is highly likely that they experienced some degree of duper's delight each time they interacted with you, as they enjoyed their secret betrayal. It's also possible that they felt a sense of superiority over you as they hugged that secret to themselves..."
On October 1st my second psychology book and flashcard deck, Carl Jung's Shadow Work, was published. This is the second project that I have published under my first name of Jacqueline Bruce, which is my new psychology author brand. The first project published under this name was The Anxiety Relief Tool Kit which dropped last year.
I have wanted to write about shadow work for some time, and while I have touched on it in my previous psychology books, I really wanted to explore it in more detail, as its own topic. I was delighted that my publisher was also keen to press ahead with such a project, and so a new book and card deck was quickly commissioned and put to contract in spring 2025.
I began to plot out the deck and outline the book last summer, sticking to the format that had worked so well with the Anxiety Relief Kit, creating an original deck of fifty cards divided into five separate categories that each support an aspect of this kind of methodology - so for the Shadow Work deck we have categories of Excavation, Awareness, Transformation, Archetypes and Individuation. These are the key concepts that Carl Jung incorporated into his theory of the shadow self and so I wanted to use them as the main framework of the deck. Each flashcard then presents its own psychological tool from within that category, building up to a deck of cards that can help readers explore their dark side in a safe and therapeutic way.
Creating a card deck that can be used as a stand-alone tool meant that I was then free to write up more of the academic history and theory behind Jung and his methodology within the accompanying book. It also gave me space to explore the aspects of trauma psychology that interest me the most, such as Betrayal Trauma, Truth Biases, Traumatic Bonding, Maladaptive Behaviours, Trauma Biases and various aspects of self-sabotage. I really wanted to dig deep into the magnetic force of the shadow self and how this force works, both for and against us. Along the way, I have touched on sub-topics that I thought readers would find most useful, such as identifying red flags and humiliation rituals, signs someone isn't what they seem and the traits to look out for that point to a saboteur and a traitor, because a traitor is always the one you just don't see, usually because it is someone who is very close to you, either personally or professionally. Close enough to stab you in the back, that is!
It turns out that it is impossible to write a book on Shadow Work without coming face to shade with your own shadow and much of this book is based on my own experience, not only as a psychotherapist with years of clinical practice in working with clients, but also my personal life experiences, because if there is one thing that I am familiar with, it's betrayal and the impact it can have. Plus I understand the great motivating force it can also be.
Nothing kills a traitor like your on-going success and upwards trajectory, particularly when that trajectory means you're succeeding in an area where they once tried to sabotage you, or in which they wish to succeed themselves and have failed to do so. Any feeling of superiority they might have experienced as a result of their betrayal will soon fade to dust and ashes when they see you living a good life, regardless of their attempted interference.
Succeeding in spite of them is the flip side to their betrayal that they just didn't see coming, so it was incredibly cathartic for me to be able to address betrayal trauma and recovery in this book. I also make reference to the one bad apple theory, but let's be honest here, it's never just one bad apple. It is always a whole bushel of bad apples in play, often in positions of power, usually hiding in plain sight and they need to be held accountable for their actions.
Needless to say, I had tremendous fun writing that chapter!
Of all the projects that I work on, psychology flashcard decks are probably my favourite, along with magical oracle decks. I have such fun deciding what cards to create and how they will fit together to generate an original deck that is a cohesive whole, but where each card has its own individual power and purpose. I love that I get to be the originator and author of these beautiful and powerful kits. They are a pleasure to write and it is always a joy to see the final published product.
I finished writing my Shadow Work kit at the back end of summer and early autumn last year. I'm delighted that it is now out in the wild and people can buy it and use it to help them recover from their trauma, uncover hidden wisdom and become more emotionally regulated. Although this project is strictly one of psychology, due to the nature of shadow work it would also be a fantastic deck to use as part of your Samhain rituals, so do bear that in mind if you enjoy a magical practice and wish to incorporate some solid psychotherapy into your pagan festivities.
I had such a great time writing this book and creating the flashcards last year, so I do hope that you love it as much as I do and that it proves beneficial to your mental health and emotional well being. As with the Anxiety Relief Tool Kit, my Shadow Work kit is an important book because it can guide you out of your maladaptive and self-sabotaging behaviours and back into a more positive state of balance and awareness. The real question is: have you the courage to meet your true self and dance with your shadow?
May your inner light guide you safely through the shadows.
Serene Blessings
Marie x
AD: This post promotes my own work.
Carl Jung's Shadow Work by Jacqueline Bruce is out now, published by Arcturus.
The Anxiety Relief Tool Kit by Jacqueline Bruce is out now, published by Arcturus.

