The best books on logic.

The list author says:
	"A good introdution to Natural Deduction and includes some Meta-theory."

The list author says:
	"A good introdution to formal logic, pitched at about the same level as Newton-Smith' s but using the 'truth tree' method of deducton. Also includes some Meta-theoretical results."

The list author says:
	"A clasic text book introducing metalogical results. Presuposes some basic knowledge of logic but is other wise clear and easy to follow."

The list author says:
	"A sound introduction to many of the central issues in the philosopy of ligic."

The list author says:
	"An exelent first introduction to philosopical logic. This book will be usful for anybody interested in philosopy and 'language philosophy' in particular ."

The list author says:
	"A usfull introduction to the subject by one of the chief experts on the fallacys approach. Will be usfull to anybody that  needs to argue well in public."

The list author says:
	"A book that is realy intended for mathamatics undergrads but may prove a usful introduction to set theory -  if you feel up to it!."

The list author says:
	"A verry popular book on elimentary fomal logic. This book is clear and easy to follow  it will be usfull fo anybody preparing to do a first course in formal logic."

The list author says:
	"A sound but basic itroduction to philosophical logic, usfull for anybody coming to the subject for the first time."

The list author says:
	"An ultra basic introduction. Not very usfull for H.E. but good for anybody wishing to test the warter."

The list author says:
	"A verry good non tecnical introduction to logic sutable for A-level students and may also prove usful for H. E."

The list author says:
	"A sound introduction to logic. This book covers informal logic, sylogism, symbolic logic (propositonal and predicate) and induction. This text uses a simplifyed form of N. D."