**Things I would change:
**
  - Separate the 'Setting Up' Chapter into another Tutorial since it is a bit overwhelming how long the Tutorial is. Removing this Chapter would make it appear slimmer.
  - For the Emacs part print out the shortcuts or link them on the side, such that nobody needs to scroll all the way up.
  - The first exercise is about the last Chapter.. so you do nothing except copy and paste till that point. 
  - There should be a small exercise after "Simple Fetch and Place" e.g. Spawn object X on the corner of the island with the color blue...
  - Next Exercise could be After 'Perceiving Objects' e.g. Now try to move to the object you spawned yourself earlier and perceive it. 
  - The same follows for placing the object.
  - Now for the Chapter 'Simple Plan' i think that the "after that you can copy-paste the following code into the file:" contains a way to long code for just copy and paste. The code is explained afterward, but it would be good to provide more of a learning effect here e.g. Writing the wrapper for the plan and then put something like ;;your code goes here for navigation, within the plan and the people have to add the actions they've learned from above sections. 
  - I personally think the Recovery from Failures section is way way to long and to much code again to copy and paste. Either this needs to be shortened or this section could be "Extra Points" or something.
  - The 'Visualizing Coordinates' could be one of the first chapters, since throughout the Tutorial you may want to know this. 
  - For the Exercise section, it would be nice to have some "hints" if you can't figure it out. Hints that you can open if you want to but u don't have to or something.