Some recommendation for a beginner?

[Börteçin Ege]

I want to build a search engine with Solr/Lucene. Shall I use for that
Apache Solr 3 or 4 (I think in this context Solr=Lucene)?
Furthermore, I have the Lucene in Action, 2nd Edition (for Lucene 3) from
2010. Is this book already obsolete?
Which books do you recommend for beginners? Thanks.