Problems with retrieving

It seems that my  My Book doesn’t see most of my files. From 19055 files on my computer (Mac Book Pro) I see only 35 on the external HD after the backup which is worrying. Where do they go?  I am using mostly .indd  , .psd , .pdf, . jpg and .mov file types. Does anybody know? Thank you

If you backed up with Smartware it only backs up select file types.