queensnake

Norvig is easier to read - larger pages, more diagrams, better writing, and you know where you are better - and fresher material.

I'd recommend the Norvig book which covers everything Mitchell does (IIRC) except 'Probably Approximately Correct' (PAC) learning.

Christopher Bishop's one I'd look at

I wish they'd make a new edition; but, probably, the field is moving too fast.

between Norvig and Mitchell, Norvig has 138 pages on learning vs Mitchell's ~390