I'm enjoying Bruce Moen's books out of order, which is not recommended for the newcomer. So maybe I'm not the best reviewer, but as someone who is also a self-styled explorer of non-physical realms I think I see Moen's strengths and weaknesses pretty clearly. His strengths are awesome. Though often sounding like just another jargony worshipful student of Robert Monroe and the new confessional tradition of out-of-body exploration that Monroe started (Moen's back-story of Curiosity seems totally patterned after Monroe's loosh parable), Moen the pragmatic engineer went ahead with his own meditative techniques and isn't afraid to be different. He doesn't just mimic the classic experiences (necessarily so, since like many people he couldn't trigger the full-blown astral body separation), he's self-confident without being arrogant, he's conversational and approachable with lots of friendly metaphors. He covers a lot of ground, and when he's right he's gloriously correct; chapters on Hells, Hollow Heavens, and spiritual hierarchies brim with priceless observations.
The weaknesses come from clearly pumping out these books in short order to jumpstart a new, however admirable, career. Moen converts his personal growth journals and interactions with friends (physical and non-physical) into long fluffy dialogues and book chapters, with no particular research, structure, or perspective beyond chronology and his Monroe Institute connections. This is in high contrast to an author like Kurt Leland whose non-physical exploration books are reader serving distillations of decades of his own experiences with channeling, dream interpretation, and exhaustive comparison with the classic source materials of the New Age (Seth), NDE/OBE, Tibetan, Egyptian, Theosophical, and other esoteric traditions.
Consequently, some of Moen's lengthy insights are far more basic than you might expect, such as that in "Voyage to Curiosity's Father" physical life is made of sequences of events which intersect other people's events, all guided by higher planning beings, so it helps to ask clearly for what you want. Yes, and?
Without studying symbolism or history (you'd think he'd enjoy reading his predecessor Swedenborg, the seminal engineer turned afterlife explorer after all), Moen with his intellectual insistence on fleshing out objective narratives to literally illustrate his every meditative insight can get downright pathological. By putting his words in the mouths of spirit teachers, Moen sets up authorities that he never questions. His fake it til you make approach to non-physical exploration (imagine it until you feel it) is fine as long as you keep evaluating and verifying. But while Moen espouses group meditating for verifications, most of what he tells was only in his head, and his biases for paternalism, Christianity, and moral simplicity remain unexamined. Moen is clearly a sensitive guy, but does he ever wonder what happened to Curiosity's mother?
Self-satisfied on higher bliss levels but without Goddess empathy to align his thinking, Moen's rush to non-judgment leads to detestable implications such as that reformed mass murderers make the best angels, souls sometimes create serial killers on purpose just to collect the experience, sadists who laugh at their dying victims get more love from the universe because laughter opens everyone to self-acceptance, and even God for a long time didn't know that love was any better than hate for creating children. Huh? Not my angels, not my soul, not my universe, not my God, no thank you.
Obviously there remain worlds of subjective motivation, belief, and self-reflection that Moen skipped to reach full speed ahead the first attainable top-level conclusions (male ego impatience, certainly). Just don't expect his to be the last books you'll ever need, and you'll enjoy Moen's confessions to a mystical lifestyle, warts and all. Seriously, there's so much to Bruce Moen to appreciate, I've only outlined the rare flaws as I struggled with them so you can step around more gracefully.
But if you do get impatient, try skipping to Moen's "Afterlife Knowledge Guidebook" where, in the next phase of his budding career, he took the time to better organize and summarize his experiences along with those of his new students. That final book from Moen can then serve as good preparation for Kurt Leland's first afterlife book "Otherwhere", which after all these years still remains ahead of the curve in teaching a total wisdom of dreams, altered states, and higher realities. After that, try Leland's "Unanswered Question", and his forthcoming "Multidimensional Human".
(followup note: now some years later, I look back at this review and sound like the biggest Leland fan ever. For a time perhaps I was, but he has his own limitations of ego style too (don't we all!), including reconstructing impossibly long spirit guide monologues from dreams without examining his own biases as a self-assumed perfect channel for the universe's final word on just about everything. Leland is excellent for explicating particular arcs of troubled soul progression through the afterlife that no doubt say something about his own evolution as a teacher, but without knowing (or caring?) what he doesn't know he may leave out important pieces of your puzzle from any cosmic plan, resulting in a lingering sense of invalidation and judgment. As always, learn from everyone with a grain of salt, and watch yourself grow to be your own best teacher over time.)