First published in 1908, New Latin Grammar by Charles E. Bennett remains an outstanding resource for students at virtually any level.
Bennett's book is a model of clear precision in its presentation of the basics of Latin grammar. Bennett uses specific examples from primary sources to help students learn the inflections and syntax of Latin, while offering a fundamental understanding of the sounds, accents, particles, and word formations of the Latin language. As an added bonus, the book provides students with a fascinating and informative history of the Indo-European family of languages and the stages of development of the Latin language.
Especially helpful to both students and instructors are the sections on prosody, the Roman calendar, Roman names, and definitions and examples of figures of syntax and rhetoric.