The new Paper Locksmith Collection includes a twelve page booklet about locks and locksmithing. The booklet covers the history of locks, modern lock mechanisms, and the future of locks. It even has a section on lock picking.
You get three working lock models to download, print, and build:
1 - Combination Lock
2 - Cylinder Lock
3 - Warded Lock
You also get the included the free locksmith booklet.
Right now this package deal is only £4.99 (about $9.80). Don't worry...Paypal will do the currency conversion for you.
Learn more about The Paper Locksmith Collection.