How To Copy Music and Songs From iPod to Computer

I bought an iPhone today that's why I need to transfer my songs in my iPod to my computer so I can transfer the music to my new iPhone. The songs in my iPod were transferred through my desktop computer at home and I'm still on a business trip. I installed iTunes already and is now searching the internet on how to copy music from iPod to computer. I'm glad that it's just easy to do.