Foundations of Christian Thought: Faith, Learning, and the Christian Worldview by Mark P. Cosgrove.
This book was required for a summer faculty development course I took on integrating faith into teaching. Cosgrove has a PhD in psychology from Purdue. This book explores the various worldviews (atheistic existentialism, secular humanism, etc.) and tests each world view by whether it's possible for people to actually live it out and whether it has any logical inconsistencies. He shows where some worldviews have thinking that align with a Christian world view, and where their thinking differs. It ends with a brief apologetic demonstrating that only the Christian worldview passes all tests.
The book illustrates the importance of incorporating faith into our teaching, but how we shouldn't be afraid to embrace secular strains of thought where they conform with Scripture. He talks about the importance of learning and knowledge--how all Christians should be scholars and not take anything for granted.
The book is written for the layperson, sort of like a "Dummies' Guide." Almost every page has a question box to address a common objection to a case he's making. (This becomes annoying over time...) Cosgrove writes very humbly and with humor, and the book is short.
I give this book 4 stars out of 5. I've not seen as concise a summary of other world views in a format that would be easy to share with a non-Christian scholar.