[notthingnill]

Thank you for your free book. Another great book is Gilbert Strang's book: Introduction to Linear Algebra. Also Boyle: Linear Algebra and its Applications.

Perhaps your free book can be used to develop some evolving tool for the student. For example: the student take a test and then the book select the best exercises and topics for that student.

[jimhefferon]

Any interest in doing that? Serious question. There are some platforms such as WeBWorK http://webwork.maa.org/ that seem to me to be promising targets.

[notthingnill]

A lot of work for a null reward. So not really.

[ci5er]

So, you want him to do lots of work for no reward! How progressive!