What type of collections do you have in your kindle? : r/kindle
MANAGE & ORGANIZE CONTENT ON YOUR KINDLE DEVICE: A STEP-BY-STEP GUIDE TO ORGANIZE YOUR KINDLE LIBRARY: get free books, gift, lend, manage family library and troubleshoot common Kindle problems: Bowman, Jerry K.:
How to Use a Kindle Ereader to Organize Your Kindle Books into Collections » The Wonder of Tech