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The stars were closed to Max Jones. To get into space you either needed connections, a membership in the arcane Guild, or a whole lot more money than Max, the son of a widowed, poor mother, was every going to have. What Max doeshave going for him are his uncle's prized astrogation manuals-book on star navigation that Max literally commits to memory word for word, equation for equation. When Max's mother decides to remarry a bullying oaf, Max takes to the road, only to discover that his uncle Chet's manuals, and Max's near complete memorization of them, is a ticket to the stars. But serving on a spaceship is no easy task. Duty is everything, and a mistake can mean you and all aboard are lost forever. Max loves every minute of his new life, and he steadily grows in the trust of his superior officers, and seems to be on course for a command track position. But then disaster strikes, and it's going to take every trick Max ever learned from his tough life and his uncle's manuals to save himself and the ship from a doom beyond extinction itself.

From the First Golden Age of Heinlein, this is the so-called juvenile (written, Heinlein always claims, just as much for adults) that started them all and made Heinlein a legend for multiple generations of readers.

Lummox had been the Stuart family pet for years. Though far from cuddly and rather large, it had always been obedient and docile. Except, that is, for the time it had eaten the secondhand Buick . . .

But now, all of a sudden and without explanation, Lummox had begun chomping down on a variety of things -- not least, a very mean dog and a cage of virtually indestructible steel. Incredible!

John Thomas and Lummox were soon in awfully hot water, and they didn't know how to get out. And neither one really understood just how bad things were -- or how bad the situation could get -- until some space voyagers appeared and turned a far-from-ordinary family problem into an extraordinary confrontation.

Travel to other planets is a reality, and with overpopulation stretching the resources of Earth, the necessity to find habitable worlds is growing ever more urgent. With no time to wait years for communication between slower-than-light spaceships and home, the Long Range Foundation explores an unlikely solution--human telepathy.

Identical twins Tom and Pat are enlisted to be the human radios that will keep the ships in contact with Earth, but one of them has to stay behind while the other explores the depths of space.This is one of Heinlein's triumphs.