1. THE NEW WORLD SPANISH/ENGLISH ENGLISH/SPANISH DICTIONARY
    Edited by: Salvatore Ramondino
    Published by: Signet Reference (Penguin Group)
    ISBN: 0-451-18168-9 $5.99

This dictionary is very thorough and and extremely useful!  It not only has a vast number of words, but also sections on verbs, and grammar in general.  I recommed it as necessary for all students...........

This is the BEST small (portable) dictionary for all students; beginning,   intermediate, and advanced.   HIGHLY RECOMMENDED!
 

2. 501 SPANISH VERBS
    Compiled by: Christopher Kendris
    Published by: Barron's Educational Series, Inc.
    ISBN: 0-8120-2602-0 $6.95

    An excellent reference and great aid for all beginning students.
        HIGHLY RECOMMENDED!

FOR THE INTERM. TO ADVANCED STUDENT....

The best Bilingual Dictionary available!
        HIGHLY RECOMMENDED!!!
 

2. LAROUSSE DICCIONARIO USUAL
    Compiled by: Ramón García-Pelayo y Gross
    Published by: Ediciones Larousse, S. A. de C. V.
    ISBN: 970-607-359-0 $12.95 HIGHLY RECOMMENDED!

A fantastic medium-sized (portable) Spanish-Spanish dictionary. Very thorough and useful.  Gives students a much deeper understanding of words than a bilingual dictionary does.  One of the best smaller reference sources.
 

3. EL ARTE DE CONJUGAR EN ESPAÑOL (Diccionario de 12 000 verbos)
    Collection Bescherelle
    Compiled by: Francis Mateo and Antonio J. Rojo Sastre
    Published by: Hatier, France.
    ISBN: 2-218-06140-6 $24.95

Sounds expensive for such a small book, BUT WORTH EVERY PENNY! The absolute best verb reference in existence, (that I know of). Contains conjugations for 12,000 Spanish verbs, a guide for using "which verb with which preposition", and many other treasures! Very portable because of its small size.   HIGHLY RECOMMENDED!!!
 

4. EL PEQUEÑO LAROUSSE ILUSTRADO en color
    Diccionario Enciclopédico
    Published by: Ediciones Larousse S. A. de C. V.
    ISBN: 970-607-451-1 About $40.

90,000 words; 200,000 definitions; 5,000 color illustrations; 250 historic and geographic maps. A very thorough encyclopedic Spanish-Spanish dictionary; culture, history, science, etc.........

THESE BOOKS CAN BE EASILY ORDERED, IF NOT ALREADY IN STOCK  FROM ANY GOOD BOOK STORE, SUCH AS BARNES & NOBLE, BORDERS, OR FROM A UNIVERSITY BOOK STORE, BY GIVING THEM THE ISBN NUMBER.