The Color of Art: Free Art Books Page, has a large collection of FREE artists reference works on oil painting, watercolor painting and other artist's techniques. Not all ebooks listed here are public domain, some are links to the their authors sites for reading and study only.
The Powerful Global Spy Alliance You Never Knew Existed April 19 2018 | From: TheIntercept It is one of the world's most powerful alliances. And yet most people have probably never heard of it, because its existence is a closely guarded government secret.
Through NSTA, you'll find leading resources for excellence in teaching and learning and experience growth through robust professional development. Plus you'll meet colleagues across all science disciplines, all grade bands and teaching stages, from the newest teacher to the veteran administrator, who share a passion for science education.