title: Using the 'first-thing' test to improve your mailings by.
authors.forename: R
authors.initials: R
authors.lastname: Barnes
mesh_terms: D015709:Correspondence as Topic; D017598:Efficiency, Organizational; D005653:Fund Raising / Q000379:methods* / Q000458:organization & administration; D009939:Organizations, Nonprofit / Q000191:economics*; D011177:Postal Service; D014481:United States