In 1962, H. Beam Piper wrote "Little Fuzzy", about an extraterrestrial critter about 2 feet tall and covered with hair. He seemed extremely intelligent, but could he actually be sapient? If so, that would cause extreme complications for the Company in charge of the planet.
In 1964, Mr. Piper wrote "Fuzzy Sapiens" (which kinda spoils the mystery of the above paragraph), in which the humans try to organize the government (including a constitution and elected legislature) for a race of sapient creatures who are as trusting and mentally developed as the average human 12-year-old. They also find out that only about 1 in 10 pregnancies results in a viable Fuzzy child - a virtual death sentence for the race.
In 1968, after Mr. Piper's death, a third novel, "Fuzzies and Other People" was discovered and published. The humans had learned how to increase the Fuzzy birthrate (again, sorry for the spoiler), but now they have to deal with the evilest creatures in the galaxy! A political process (the election of delegates to the Constitutional Convention {no Fuzzies need apply]) spawns politicians!
Simultaneously, we gain insight into the workings of a Fuzzy clan that has never had contact with humans.
This omnibus edition was published in 1998, but I only learned of it and the third novel this year.
Since I also own a paperback edition of "Little Fuzzy" ( (c) 1962, but I make no claims to it being a first edition), I will review that separately and spoiler-free.