We give a positive answer to a
problem of Lindenstrauss by showing that the family of compact Hausdorff spaces
which are homeomorphic to weakly compact subsets of Banach spaces (Eberlein
compacts) is stable under continuous images. This is equivalent to the fact that a
Banach space E is a subspace of a WCG space iff the unit ball of E∗ is an Eberlein
compact when equipped with the w∗-topology. We also study some topological
properties of Eberlein compacts.