While I am not very well read I am often asked about books I would recommend. Below is a list of introductory level books which are not too difficult to read and go by pretty quickly even if you are a slow reader like I am. The prices are reasonable as well, but make sure to look on more than just Amazon.
According to Plan by Graeme Goldsworthy
Goldsworthy does an excellent job of introducing a massive subject which is far too often neglected.
Charles Hodge Systematic Theology by Charles Hodge
The regular price on this three volume set is $100, but CBD has it right now for only $20.
Life’s Ultimate Questions by Ron Nash
Nash is probably the clearest writer I have ever encountered in philosophy. This book stands out from most other introductions to philosophy in that it is not merely composed of articles grouped together according to their subject matter. There is also a significant amount of emphasis on worldview thinking and critique which is no doubt due to the author’s Clarkian background.
Pushing the Antithesis by Greg Bahnsen
The best introductory level text on presuppositional apologetics currently available.
Tell the Truth by Will Metzger
Francis Schaeffer’s influence can be seen throughout this amazing book.