This is the thing I used to explain over and over on the phone, written down once so you can have it for the price of a sandwich. Seven chapters. Where wage survey data comes from and what that means for its limits. Benchmark matching, with four worked examples including two real ones with the names removed. Means, medians, percentiles and the honest and dishonest uses of each. Sample frames and nonresponse, with a simple method for checking whether your own member survey is representative. Aging factors and effective dates, which is where a study quietly becomes eighteen months stale. Staffing and scheduling models and the single assumption that usually carries them. What to request from the other side, in what order, and what their refusals tell you. Every calculation is shown longhand. There is no software required and no formula that needs anything more than a calculator. There are twelve checklists you can photocopy and hand round a committee, and permission to do exactly that is granted in the front matter. Delivered as PDF and EPUB immediately on purchase. Free to any local, worker center or cooperative that asks me directly, and I mean that, so please ask rather than paying if money is tight.