I know the booklets aren't the point of the product, but they are part of the 'scope of delivery'. Plus, the cost of producing the booklets is a component (however small) of the overall price.
It's too bad about the text, because the layout and graphic design of the booklets are quite attractive.
The red booklet ("Lomography / Zenit: the Russian Rebirth") is fun to browse through. It's about 97 pages in length. But the first 79 pages are all filled with Lomo's self-congratulatory artsy silliness. Finally, on page 80 there's a brief history of KMZ that lasts 13 pages.
The grey booklet ("New Jupiter 3+ Manual") is very basic, with common-sense instructions like "do not look at the sun through the lens" and "do not try to disassemble the lens" printed in eleven languages.
The turqouise booklet is the thickest of the three books. As others have mentioned, it's kind of a micro-sized coffee table book showcasing the abilities of the J-3+. Again, it's fun to browse through. There are lots of interesting photos.
On pages 78-79 there is a brief history of the Jupiter-3 -- literally cut-and-pasted from sovietcams.com (they credit the website as a source). Two whole pages! I'm glad they didn't burden the purchaser with a fascinating retrospective of 70 years of KMZ's rich history. Those pages are much better utilized for cross-processed photos of cats, and dreamy pictures of macaroons. 🙂
On page 83 there is IMHO a very odd and erroneous reference to the the planet Jupiter: "While it's true the the largest planet in our great Milk Way galaxy can easily be spotted with the naked eye..." Sorry to disappoint you Lomography, but a quick Google search reveals that there are 122 exoplanets (as of 2016) that are larger than Jupiter. Many of them are considerably larger. Later on the text switches 'Milk Way' for 'solar system', leading me to think that the author either was not a native English speaker or he/she has a terribly shallow understanding of the cosmos.
Despite the somewhat sophomoric booklets, I'd say overall I'm happy with the J-3+. Having previously owned the ZM C-Sonnar 50/1.5 (a lens I never warmed up to) I'd choose the J-3+ over the Zeiss. The J-3+ unashamedly embraces its quirky character. Plus, if you're counting shekels, the Zeiss is about twice the price of the new J-3+ (the Zeiss is $1200 USD at B&H as of this writing).
So is it a lens for everyone? Not at all. Many people will still consider the J-3+ to be overpriced for what it is. But as a unique photographic tool, it's well worth considering when compared to other similar offerings.
