These cards are a great thickness to work with, and the curved edge makes it easy to take one off the stack.  The topics included are nicely comprehensive (colors, body parts, shapes, etc).  My kids will do one "section" of vocab at a time and I can quiz them.  I am going to look for another set of flash cards that have Spanish on one side and English on the other to add to our collection.  This set has the same Spanish word on both sides with one picture of the word on the back (just like the box pictures).  We can't use them for quizzing ourselves back and forth for learning vocabulary, but they are good words to learn with a nice, easy read font.