Megan Mabee writes: “April 7 marks a special day for libraries as we join ALA in celebrating National Library Outreach Day (formerly National Bookmobile Day). Library outreach holds the indispensable purpose of meeting patrons right where they are. Not everyone has the means, ability, or privilege to go to the library in person. Libraries help meet these needs by extending their services outside of the library walls. In honor of library bookmobiles, check out these books about mobile libraries.”