Over the years I've gotten a few brochures from the LvMI, but none of them have ever really dwelled into economics so much as a brief history of the institute and perhaps the liberty movement in general. Has the institute created an austrian economics brochure yet?
http://mises.org/store/Why-Austrian-Economics-Matters-P157.aspx (text available here.)
These are provided free of charge at Mises events. As are these.
For more such literature, see here: