if I make a PowerPoint lecture based on someone else's book, am I violating his copyright?

Question

I'm a tutor but not an author.  
 
Let's say I'm teaching poker. 
 
1) I've made a set of PowerPoint slides based on various books that I use when I teach. There are famous card hands given as examples. I know that the hands can't be copyrighted, and the analysis is well-known. But am I violating their copyright if I use the same examples and analysis that they use? I consider those books to be my class' textbook. My slides show the hands and the order of the cards as they are drawn. 
 
2) Does it matter if I cite the books as my sources? 
 
3) If using their books in my private tutoring is permissible, then am I crossing a line if I film my tutoring and put it on YouTube or Teachables.com?

Timothy John Billick · Answer

1) Copyright covers the expression itself, not the idea. So if you're discussing strategies/approaches/ideas your risk should be low. If this is strictly for educational purposes (i.e. you're only using them for private instruction), this also helps you in a fair use defense to a potential infringement allegation.  
 
2) Still cite your sources as always. If nothing else, it's just good practice; and it's cheap insurance against accusations of infringement.  
 
3) The analysis here becomes less favorable to you if you publish the cards/hands with someone else's expression. But this is a gray area and you should consult with an IP attorney 1:1 to get a more granular analysis.

Q: if I make a PowerPoint lecture based on someone else's book, am I violating his copyright?