Dive into the world of mathematical problem-solving with our comprehensive book on Olympiad-level challenges. Whether you are a beginner eager to explore the beauty of mathematical problems or an advanced reader seeking alternative solutions and generalizations, our book caters to all levels of expertise. Carefully curated problems cover Algebra, Geometry, Trigonometry, Number Theory, and Combinatorics, providing a diverse and engaging learning experience. The second edition introduces two new sections and over 60 additional problems with complete solutions, offering an enriched resource for both aspiring and seasoned mathematicians. Sharpen your skills and broaden your mathematical horizons with this must-have guide to Olympiad problem-solving

Discover "Introduction to Solid State Physics" by Amnon Aharony and Ora Entin-Wohlman, a comprehensive and accessible guide for students and educators in physics. Explore crystal structures, electronic properties, and more with this essential text from World Scientific.