I took 3 semesters of French at the University of La Rochelle in La Rochelle, France and these books were recommended by my teachers who were French. These books have helped me tremendously and I found them to be well written.

• Grammaire Progressive du Français, Niveau Intermédiaire – CLE International, ISBN : 978-2-09-033849-2
• Grammaire Progressive du Français, Niveau Avancé – CLE International, ISBN : 978-2-09-033862-1
• Vocabulaire Progressif du Français, Niveau Intermédiare – CLE International, ISBN : 978-2-09-033872-0
• Vocabulaire Progessif du Français, Niveau Avancé – CLE International, ISBN : 978-2-09-033876-8