I'm thoroughly unimpressed with the cover art for these. So, people won't be smart enough to know which series a book belongs to unless basically ever cover in the series uses essentially the same design elements with a little variation? Maybe Kirby went over the top at times, but at least each cover of his Corgis was visually arresting.
They also misuse the word "branding" to refer to things that are merely similar. A true brand is exactly the same every time, like a logo. It's not a brand, it's a style.
Admittedly, covers have to do a lot of work. They have to be recognizable from five feet away in a bookstore, and reduced to less than one inch in height on a computer screen, and still make some sort of impact. I think the best ones have two pictures - the one you see when you look at it full size, and the embedded one you see when you look at the tiny version. Pareidoleia can make even a vague shape into a face and thus attract your attention. Now if only they would make the title legible.
On the other hand, they are ebooks, and while a nice cover is pretty, I would assume that the people buying them bought for the name of the author and the title of the book, not the picture.
Probably so, and even these are better than the versions with the awful black covers with a stock photo image of some object on it. And just about every UK version is better than the horrendous U.S. paperback version covers.