As far as I know, there has never been any official English translation of the Finnish books and not even any unofficial translations of the entire books.
However, there have been members here who did translations of parts of the books and they can be found here but I don't know the specific threads off the top of my head.
In theory, searching for "Finnish" should locate those threads for you.
EDIT, the first: I think these three are probably the most relevant
https://forum.juhlin.com/showthread....hlight=Finnish
https://forum.juhlin.com/showthread....hlight=Finnish
https://forum.juhlin.com/showthread....hlight=Finnish
EDIT, the second: more relevant
https://forum.juhlin.com/showthread.php?t=1977
https://forum.juhlin.com/showthread.php?t=3906
https://forum.juhlin.com/showthread.php?t=3903
https://forum.juhlin.com/showthread.php?t=3886