SKY: Spirit, Know, Young - notebook covers.
”Great spirits have always found violent opposition from mediocrities.The latter cannot understand it when a man does not thoughtlessly submit to hereditary prejudices but honestly and courageously uses his intelligence.”
Albert Einstein

"Knowledge is the food of the soul."

"Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young. The greatest thing in life is to keep your mind young. ”
Henry Ford

The three covers combined
Old versions (1)
Old versions (2)
Variations - notebooks, writing pads (currently on the market)