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Founded in 2019 by Dr. Sylvia Masson, a veterinary specialist in companion animal behavioral medicine, No Ledge is dedicated to promoting animal welfare by sharing knowledge in the field of veterinary behavioral medicine—particularly in the area of animal behavior and animal welfare.

Made up of several specialized entities, the group offers a comprehensive range of services and resources for both professionals and passionate animal lovers.

The Divisions of No Ledge

1- No Ledge Editions: The Publishing House

No Ledge Editions has already published four books and one booklet

« G.E.R.E.R. – Training and Behavior of Your Dog : (320 pages – €29.90) A positive training method for a harmonious relationship with your dog. Released in early 2020, this book is aimed at the general public and has sold over 4,000 copies. A revised edition with updated data is scheduled for late 2025.

Reader Reviews:

4.7 out of 5 stars based on 68 Amazon reviews
“A very comprehensive and well-documented book, enjoyable to read with plenty of examples.” — Amazon
“An excellent book, a must-have for me. Very well written.” — Amazon

« Veterinary Psychiatry of the Dog » (976 pages – €180.00) A unique reference work for professionals and experts, co-authored by Dr. Sylvia Masson, Dr. Stéphane Bleuer-Elsner, Dr. Gérard Muller, and cognitive psychologist Dr. Tiphaine Médam. Released in January 2023, it has received outstanding feedback for its depth and quality.

Reader Reviews:

“Brilliant. A magnificent book.” — Amazon
“An essential and very comprehensive work. I’m so glad I have it. It guides me in my practice.” — Facebook
“An indispensable book, supported by precise illustrations. Thank you for this much-needed work. Well done!” — Facebook

All books are available on the No Ledge website as well as on Amazon.

« Veterinary Psychiatry of the Dog » (English edition) Translated and published by Springer Nature.

« Studying Primates » (376 pages – €39.00) Written by Joanna M. Setchell and translated from English by Cécile Garcia, this book is intended for professionals and explains how to design, conduct, and present research in primatology.

« How to Live with Your Cat » (272 pages – €29.00) Written by Sylvia Masson, this book is aimed at the general public and cat lovers who want to better understand this mysterious and captivating animal.

2- No Ledge Formations

A training program designed for professionals (veterinarians, trainers, veterinary assistants) to share current knowledge and methods tailored to real-world needs. Delivered by experts, the catalog evolves continuously and includes custom conferences.

Training Sections:

For veterinarians: Behavioral therapies in veterinary psychiatry, Communication tools in consultation, etc.
For veterinary assistants (ASVs): Education vs. behavior—how to tell the difference, Rehabilitation of care-related phobias, etc.
Custom programs: Tailored content based on the audience’s needs.

Over 20 conferences and training sessions have been delivered since June 2023, over 50 in 2024 and even more in 2025.
Catalog available on request.

3- No Ledge Software

This branch develops tools like Psy4Vet, an innovative software for companion animal behavioral medicine. It helps practitioners save time on reports and offers structured consultation support for those less familiar with the discipline.

Since its launch in 2020, all subscriptions have been renewed. Multiple plans are available on the Psy4Vet website.

A new module has been specifically designed to assist and support general practice veterinarians and veterinary assistants in managing behavioral disorders in dogs and cats.

4- No Ledge Consulting

A team of experts supporting professionals through knowledge sharing and skill development to improve clinical practice.
Nearly 200 case studies have already been submitted, and over 20 custom questionnaires and scales have been created to meet growing demand since the launch of this service in June 2023.

5 – No Ledge Research

No Ledge Research is committed to advancing veterinary science, with 15 peer-reviewed publications and over 15 studies conducted in just three years. These efforts have led to major progress in veterinary medicine, including contributing to the ban on electric shock collars in France2.

Source :

6 – Cynapse: No Ledge’s YouTube Channel

Cynapse is a rich source of knowledge in canine education, animal psychology, communication, and veterinary psychiatry. Written by a team of professionals (veterinarians and dog trainers), the short-format videos (4–10 minutes) are designed for both the general public and professionals seeking engaging, free educational content for their clients.

Avec 7330 abonnés à ce jour et 185957 de vues cumulées pour 116 vidéos en ligne, Cynapse se distingue comme une ressource essentielle depuis son lancement le 17 septembre 2023.