my system is simple but effective. I use a digital spreadsheet to track titles, authors, and volumes, but the real magic is in physical organization. I sort them by genre first, then alphabetically by series. For digital copies, I use Calibre—it’s free and lets me tag metadata like ‘isekai’ or ‘romance’ for quick filtering. My pro tip: backup your library to cloud storage like Google Drive. Losing a hard drive once taught me that lesson the hard way. For physical books, clear plastic sleeves protect dust jackets, and I label shelves with colored tape for easy spotting.