New England Historic Genealogical Society is having a book sale online. Books can be purchased remotely. A list of books available has been published at this link:
A quick search of the list yielded some heraldry related titles. There may be other books of interest to AHS members.
Thank you Jeremy, some titles are indeed of interest.
May be of interest to Joe, who has researched name & arms legislation inMaryland:
Divorces and names changed in Maryland : by Act of the Legislature, 1634-1854, by Mary Keysor Meyer
1970. Description: Hardcover, vii, 143 p., 23 cm., library plates and stamps