New OCaml books?

Hello,

Just chiming into the conversation to ask what is the ideal book/tutorial to get into OCaml? I am a data scientist which means that I do code at work (we use scala, python and I have experience with C++) but of course I am not a software engineer. I have seen that book that might interest me [ANN] Draft of OCaml Scientific Computing book

Also, is the book by Mr Leroy and Weiss still useful today? (https://caml.inria.fr/pub/distrib/books/llc.pdf) (I mean, has the syntax/language not changed too dramatically? )

Maybe I could read that one (I can read french) and have another resource for more “modern” syntax (if it has evolved). Which one?

Thanks!