Many top-tier universities post their updated Kittel-based courses publicly. Look for:
Understanding how many "seats" are available for electrons at specific energy levels. Slide 6: Energy Bands (Chapter 7-8) The Nearly Free Electron Model: What happens when you add a periodic potential? Energy Gaps: introduction to solid state physics kittel ppt updated
The search for an is not about cheating or avoiding the textbook. It is about efficiency . Kittel wrote the encyclopedia of the solid state; the updated PPT is the GPS. the updated PPT is the GPS.