Quoted By:
Asimov's Foundation Trilogy.
I have another edition for this, that has the trilogy plus Foundation's Edge.
A translation of what is written on the back cover:
"The Galactic Empire, that has exerted its power on all known planets for centuries, is to disappear: it will leave place to 30.000 years of ignorance and violence. Hari Seldon, creator of the groundbreaking science "psychohistory", knows what sad demise awaits humanity. And in order to preserve civilization he gathers the best scientists and scholars on Terminus, a small planet on the edge of the Galaxy: it's the First Foundation, creator of a great empire. The institution is doomed to be destroyed by a terrible and mysterious mutant who enforces a horrible dictatorship. But among the ruins of what has been a beacon of knowledge, it is said to exist, hidden in a far corner of the Galaxy, a Second Foundation. Those who want to destroy it and the survivors of the First Foundation are looking for it desperately. Its destiny lays in the hands of a teenager, Arkady Darrel, who hides a terrible secret..."