Amazon has listed some details for The World of Professor Layton. If you are interested, you can preorder the official art book (which is being published by Udon Entertainment with an ISBN-10 of 1927925460 and ISBN-13 of 978-1927925461) by using this link from the shopping website. Check out the cover of the paperback with the image underneath this paragraph.
The World of Professor Layton is expected to come out later this year on November 19th in North America.
Professor Layton series was first released in the west, with The Curious Village, in 2008. The latest mainline release was Professor Layton and the Azran Legacy on February 28, 2014. A spin-off title, named Professor Layton vs. Phoenix Wright: Ace Attorney, also came out last year on the 29th of August in north America. So, if you are a fan of the series, you might want to check out the official art book from Udon Entertainment when it launches.