Arek Dreyer and Ben Greisler have been at it again. The latest editions of the Apple Training Series books are now out, providing a guide to getting certified with OS X Server. I haven’t gotten mine yet, but I suspect that the book, as with the previous books, will be excellent. To quote the book description: The only Apple-certified book on OS X Server on Mountain Lion, this comprehensive reference takes support technicians and ardent Mac users deep inside the server for the latest operating system, covering everything from networking technologies to service administration, customizing users and groups, and more. Aligned to the learning objectives of the Apple Certified Technical Coordinator…