The point of spell cards is for the information to be concise and easy to access. These cards are spread over 3-4 cards which for holding a spell book worth of spells is a nightmare. Don't waste your time.

Back in the mists of time, or at least when it was Advanced Dungeons & Dragons with no pesky version numbers, I spent an absolute age transcribing spells onto 5x3 index cards so that I had all the information I needed at my fingertips (or to toss at the DM so that he could adjudicate the results). Useful, too, to be able to stack the spells learned for the day on the table so that there was no question about what I'd prepared.

Version succeeded version, and Pathfinder came out, and Louis Porter started producing these really nifty sets of cards, nicely laid out and neatly printed with all the pertinent details of published spells (and sets for other stuff too...).

And now... those of us who collect spells from other sources, convert ones from older versions, work out how spells in fiction 'work' in game terms or even, dare I whisper it, invent our own spells can put these additional spells into our neat card collection with a fine set of blank cards.

For they are not just blanks... the wonders of PDF technology enable you to type in the details before you print your card out (just as well given my handwriting!). You can even - provided you are organised about how you go about it - save all the details.... although some of the check boxes don't work and you don't really want to keep THREE pages of OGL legalese (has nobody at LPJ Design heard of small fonts?) for every card.

A very useful product for anyone who likes the convenience of spell cards but likes to add extra spells outwith mainstream published ones.