BE FAQ: How do I prepare and distribute Request for Proposal and Terms of Reference documents?

We often get email enquiries asking for advice in preparing the documents used to invite evaluators to prepare proposals to do an evaluation. These documents have a variety of labels including Request for Proposal (RFP), Terms of Reference (TOR), and Scope of Work (SOW). The advice below focuses on two important aspects in this: writing a good RFP/TOR, and sharing it in ways that will create the best pool of proposals.