Mark your calendars for The Gaithersburg Book Festival The Gaithersburg Book Festival will be on Saturday, May 20th from 10 till 6 at Bohrer Park. There will be best selling authors, a story telling tent, workshops for adults as well as kids and so much more. It is free to attend and free to park. There are 4 satellite parking lots and regular shuttle busses circulating from the lots. Click here for more information on the website.