- HörbuchThe Negotiation Mastery BundleMichael Wheeler
- HörbuchThe Critical MomentsMichael Wheeler
- HörbuchWhen to Say YesMichael Wheeler
- HörbuchThe Art of NegotiationMichael Wheeler
- HörbuchNegotiation OpeningsMichael Wheeler
- HörbuchPreparing to NegotiateMichael Wheeler
- HörbuchQuantum NegotiationKaren S. Walch