William Lane Craig (2010):
On Guard - Defending Your Faith with Reason and Precision
Kindle ebook only 2.65 $
translation 12.90 €
If you can only buy a single book on Christian apologetics please do not look further and take this one, as it is the best available introduction for laymen.
William Lane Craig (2008):
Reasonable Faith (3rd edition)
Kindle ebook 21.57 $
This is a must have not only for believers, but for skeptics and atheists as well, because no other book explains the evidence and arguments for theism and the Christian faith as good as
James Porter Moreland & William Lane Craig (2009): Philosophical Foundations for a Christian Worldview
Kindle ebook 34.14 $
This is a very profound work for all those, who are interested to get in depth knowledge about apologetics and Christian philosophy.
Edward Feser (2010)
The Last Superstition - A Refutation of the New Atheism
Kindle ebook 15.83 $
Apart from an excellent, even though sometimes polemic, refutation of atheist arguments against theism, Edward Feser presents in this book a simple introduction into the philosophy of Thomas