* Introduction * Liber Abaci: Here Begins the First Chapter * On the Multiplication of Whole Numbers * On the Addition of Whole Numbers * On the Subtraction of Lesser Numbers from Greater Numbers * On the Divisions of Integral Numbers * ON the Multiplication of Integral Numbers with Fractions * On the Addition and Subtraction and Division of Numbers with Fractions and the Reduction of Several Parts to a Single Part * On Finding the Value of Merchandise by the Principal Method * On the Barter of Merchandise and Similar Things * On Companies and Their Members * On the Alloying of Monies * Here Begins Chapter Twelve * On the Method Elchataym and How with It Nearly All Problems of Mathematics Are Solved * On Finding Square and Cubic Roots, and on the Multiplication, Division, and Subtraction of Them, and On the Treatment of Binomials and Apotomes and their Roots * On Pertinent Geometric Rules And on Problems of Algebra and Almuchabala * Notes for Liber Abaci * Bibliography

First published in 1202, Fibonacci's Liber Abaci was one of the most important books on mathematics in the Middle Ages, introducing Arabic numerals and methods throughout Europe. This is the first translation into a modern European language, of interest not only to historians of science but also to all mathematicians and mathematics teachers interested in the origins of their methods.