Read one of Robert Heinlein's earlier collections. This one is a two story collection, and those stories are both novellas. The collection is called "Waldo & Magic, Inc.".
The first story in this collection, "Waldo", is full on science fiction. In this one a company called North Power-Air is in very deep trouble. The aircraft that they have are constantly crashing at a wildly growing rate, and yet none of them can seem to find an answer as to why. Wanting answers desperately they seek the help of a crippled genius named Waldo, who lives in his zero-g home in an orbit around Earth. But Waldo himself has very little to help humanity, until he discovers a solution to the planet's problem also holds the key to his own.
Now the second titled "Magic, Inc." leans heavily into fantasy. The tale revolves around the titular Magic Inc. that is squeezing out independent magicians. But there is one man that is standing firm against them. And with the assistance of an Oxford educated African shaman and an old woman who is adept in the black arts, he very much willing to take on Hell and denizens in order to settle the problem once and for all.
So this is another sampling for me of some of Heinlein's earlier stories. And these two novellas have been really entertaining! There is a good amount of humor in them as there is deep peril. Another really fun book with two stories, in two different genres!
I need to pick up some of his short story collections, especially those that have some of his earlier stuff. One of those collections in particular, "The Green Hills of Earth", will be one that I'll certainly be seeking out sooner or later.
by i-the-muso-1968