Serenity Caldwell and the iMore team have pulled together a pretty massive eBook, a complete guide to Apple Music. I’ve been reading it on my iPhone and it’s just what you’d expect. Serenity knows her stuff, there’s a lot of detail on setup and troubleshooting, it looks great, and it’s only $4.99.

On the iMore promo page, the eBook is said to be 150 pages. But on my iPhone, it weighs in at 450 pages. Obviously, page count depends on your device, your mileage truly may vary.