1. Scan the book before reading it.
Going through glossary and reading subheadings is often good enough as reading the book. Summarize the book before in like 10 sentences before you read it.
  1. DO NOT read to understand EVERYTHING .
Only 20% of a books material is worth your time. Some content in books is almost common sense you'd have figured out by yourself.
  1. Use a pen/finger/cursor pointer to track where you reading.
Place it at beginning or end of the line you're reading, makes it easy for your eyes to track where you're reading.
  1. Read books on similar topics together.