This is a short reminder that SMUG members can buy books at a 30% discount using the SMUG discount code, posted on the News discussion board, https://strait-mac.org/discussion-topics/take-control-books-discount-for-smug-members/
I mention this because Take Control Books has just released revised versions of four books,
Apple TV

iOS 16 and iPadOS 16

macOS 13 Ventura

and a rather complex subject involving many apps across several devices,
macOS Media Apps

If you have purchased an earlier version of any of these books, you can log into the Take Control site and download the update, for free. If you don’t have a previous version, you can go to the site, buy the book or books at a discount, and start reading the books immediately.
A note on format: Take Control offers books in PDF, ePub, and Kindle (Mobi) formats. I recommend ePub, as this is the format used by Apple for iBooks on the Mac, iPhone, and iPad. Recent versions of Amazon Kindle also accept ePub.
Amazon, for reasons unknown to mere mortals, is dropping support for Mobi on Kindle. This is somewhat nuanced and difficult to explain, but generally speaking, ePub seems to be the way to go.
PDF documents are not recommended. They tend to be larger, and have fixed page dimensions, which make them almost impossible to read on an iPhone, and difficult even on an iPad. Stick to ePub.