The images are either public domain, by me, or under Creative Commons license with credit given at the bottom of the posts.

The image of cards that sometimes displays in the sidebar is © Philippa Willitts under Creative Commons license and edited by me.

Portions of this site use FamFam Icons under the Creative Commons Attribution 2.5 License.

My memory system for numbers and cards is based on the Ben System. I’ve also gotten lots of inspiration and ideas from Dominic O’Brien’s books. My reading list is here.

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