Does this calendar show exact Moon phase dates, eclipses, and Supermoons for each month?

Yes. Official product details confirm the calendar provides Moon phases, eclipses, Supermoons, and other Moon-related astrological information alongside the standard US, UK, Canadian, and Pagan holidays marked on the grid, for every month of the 2027 calendar year without any gaps in coverage between one month and the next across the full twelve-month span from January through December of that year.

What's the difference between this and Llewellyn's Moon Sign Book?

The Moon Sign Book is a 312-page reference and planning almanac with void-of-course charts, forecasts, and aspectarian tables built for detailed timing work across the whole year. This Magical Moon Calendar is a wall calendar pairing illustrated art with one short spell or lore piece per month, without the Moon Sign Book's forecasting or void-of-course content built into its much smaller page count.

Does this calendar include Moon void-of-course times for ritual timing?

No. Void-of-course data is a Moon Sign Book feature specifically, not something this calendar's feature list has included across recent editions of the series. This calendar instead marks Moon phases, eclipses, and Supermoons, which cover a different kind of lunar timing than a void-of-course chart provides for the kind of precision electional work an almanac is built for in the first place.

Is this the same as Llewellyn's Witches' Calendar?

No, they are distinct sibling titles within the same annual lineup. The Witches' Calendar features illustrator Jennifer Hewitson's scratchboard art with a monthly ritual theme, correspondences, and Sabbat content built around it. This Magical Moon Calendar uses a different set of illustrators entirely and structures each month around a single Moon-focused spell or lore piece instead of a broader seasonal ritual theme.