Capstone buys Heinemann-Raintree

<p>Minneapolis-based Capstone Publishers has bought the Heinemann-Raintree library reference group from Pearson, according to <em>Publishers Weekly</em>. </p><p>The deal involves more than 6,000 titles aimed at the pre-K to secondary school market. The purchase expands Capstone&rsquo;s international reach; Heinemann-Raintree has offices in Oxford, in addition to its Chicago location. </p><p>Tom Ahern, c.e.o. of Capstone, said the company will continue in its policy of &ldquo;letting our imprints operate with autonomy.&rdquo;<br /></p>