Three Books

There are at least three known books that are said to exist besides Liber Primus meaning First Book, and there was one I solved which might have been the final or third book which is Liber Veritatis meaning Book of Truth, but there is one before it that translates to You Are Welcome, which I don't have including pages to Liber Primus since some pages were never solved?

I'd like to find out if there are more books to decipher...?

Here's a decrypted link to Liber Veritatis: drive.google.com/file/d/1IXEU-jlLzOa7nl8oAr_kMfXr5AHu5mtX/view?pli=1

Please leave what you find in the comments below?