I like some authors who write more than fishing books, although some of them were fishermen. Take a look:
Paul Hyde Bonner –
The Glorious Mornings, Stories on Shooting and Fishing, (1954), Scribners;
Hotel Talleyrand, (1953) Scribners;
With Both Eyes Open, (1956) Scribners;
SPQR, (1952), Scribners.
Jack Finney –
Time and Again, (1970), Simon & Schuster
Robert Frost –
Collected Works – or just any of his many published works and compendiums.
Ernest Hemingway –
The Nick Adams Stories, (1925, 1955), Amereon House;
In Our Time, (1925, 1930, 1958) Scribners; and
Islands in the Stream, (1970), and all of his other books!
James Joyce –
James Redfield –
The Celestine Prophecy, (1993), Warner Books.