We are assuming you care about microphones, microphone placement and solid recordings if you are on this page... When I first got into recording, the biggest jumps I ever took were because of buying better microphones and using them properly. I've read so many different articles and books on microphone placement and I must say that this article on the Cakewalk support page is just great. It's very clear and includes high quality images to make sure you understand each and every technique. Cakewalk Support Knowledge Base - 10 Microphone Placement Techniques for Acoustic Guitar.