Zimmerman's Research Guide

Materials discussing how to value a business include:

1. PrivCo's Private Company Valuation page, for a quick overview of valuation methods;
   
2. Shannon P. Pratt's Valuing a Business and the many other publications by SPV Shanon Pratt Valuation;
   
3. Tom West's The 20__ Business Reference Guide - The Essential Guide to Pricing a Business (Business Book Press);
   
4. The Valuation Guides and Books by BVR Business Valuation Resources. BVR also publishes BV Law, a database of valuation-related case law.
   

Resources providing data for valuing businesses include:

1. The Business Valuations by Industry: Detailed Studies of Businesses Actually Sold series (NVST Publications);
   
2. Pratt Stat, BVR's private company merger and acquisition (M&A) transaction database (subscription);
3. BISCOMPS for data on sales of small businesses (subscription);
   
4. PrivCo for data on sales of large private companies.