For the last year I've been researching some great books on missions:  Here is my list of suggestions:

• Serving With Eyes Wide Open by David Livermore
• Revolution in World Missions by K.P. Yohannan
• Getting Sent by Sommer (Great for support raising)
• Cross-Cultural Conflict by Duane Elmer
• Let The Nations Be Glad by Piper
• A People for His Name (A Church- Based Missions Strategy) by Beals