Here is another handout we distribute quite often (along with a copy of Doggie Language by Lili Chin), not just for fosters or adopters of shy dogs but of all dogs as the information is applicable and useful in general.Credit goes to @Mara Velez of Humane Dog Training Advocates. A link to the handout can be found at https://www.humanedogtrainingadvocates.com/resources#Behavior,TrainingandEnrichment