Theodor Zahn’s Introduction to the New Testament (3 vols.) is still available on Community Pricing. Bid by this Friday and you could get the entire set for only $14!
Study classic scholarship
Zahn, a German professor and writer born in 1838, represents the best of conservative scholarship in the early twentieth-century. As the The New Schaff-Herzog Encyclopedia of Religious Knowledge notes:
His literary activity has been great, commensurate with his responsibility as virtual leader of the conservatives in New-Testament criticism. 
When last reproduced in print, it received this recommendation from S.L. Johnson Jr. in Bibliotheca Sacra:
Theodor Zahn was Professor of New Testament Exegesis in Erlangen University. He was an outstanding interpreter of the New Testament, but to most in the English-speaking world he is known best for his Introduction to the New Testament. It is without doubt the finest work of its kind. Its conservative viewpoint makes it a must for all diligent conservative students of the New Testament. It should be read and re-read until it has been digested. One may not follow Zahn in all of his views, yet they are always stimulating.
Save with Community Pricing
Get this respected set for 78% off the regular price when you bid today. But hurry – bidding closes at noon (PST) on Friday, February 6!
 At the time of writing, the projected price for the Theodor Zahn’s New Testament Introduction was $14, 78% off the regular price.
 Samuel Macauley Jackson, ed., The New Schaff-Herzog Encyclopedia of Religious Knowledge: Embracing Biblical, Historical, Doctrinal, and Practical Theology and Biblical, Theological, and Ecclesiastical Biography from the Earliest Times to the Present Day (New York; London: Funk & Wagnalls, 1908–1914), 496.
 Bibliotheca Sacra 111, no. 444 (1954): 371.