I have been working on a new kind of reference book for some years. The book is similar to existing reference books, but uses a unique way to present the information, which I previously had not seen in books, but imagined might be useful.
I recently found someone else has published a book, just this year which is identical in concept. The marketing of the book even specifically emphasizes the novelty of the new approach to presenting the information. Beyond the small details, such as specific wording of the data, the two books are really similar.
Could I run into copyright or similar problems if I attempt to publish my book, given the similarities in the concept?