The Permanent Revolution by Alan Hirsch & Tim Catchim
The subtitle reads Apostolic Imagination and Practice for the 1st Century Church.
This is a book that looks at the ascension gifts found in Ephesians 4 the Apostle, Prophet, Evangelist, Shepherd and Teacher (the APEST ministry) giving particular attention to the Apostolic gift.
Part one of the book looks at Ephesians 4 and examines the entire APEST ministry.
Part two examines the apostolic ministry.
Part three focuses in on apostolic leadership.
Part four focuses in on apostolic organization.
The book is very academic but in my opinion a must read for all leaders.