Learning how to use my camera wasn't the easiest thing in the world. I read, underlined, and made notes and tabs in my manual. This, however, I carry in my bag and it reminds me what I'm supposed to be doing. Some simple things, I learned from this card rather than searching it out in the manual. It made learning my camera so much easier, and it's just a fold-up card I stick in the pocket of my camera bag and refer to when I need it.