Every letter and numeral in English is in this diagram. Every English language book you've ever read is right there. *brain explodes* edited to add: if you can't find a letter, read the comments, someone has probably explained where to find what you're l
Here superimposed upon one another are; club, heart, spade, and clover symbols which are found in an ordinary deck of playing cards. All 4 symbol designs came from out of 11 inscribed circles as shown here.