I recommend that you buy "The Joy of Mixology" by Gary (aka Gaz) Regan. It has a great intro and also presents a methodology for organizing recipes into families to make them easier to understand and remember.
Also, "The Essential Bartender's Guide" by Robert Hess is a spiral bound (lay-flat) book with lots of simple recipes in an attractive format.
For shakers, I recommend that you call The Boston Shaker in Somerville MA. They can help set you up with good basic bar tools. I am still using the tools that they originally recommended for me, with one exception. I now use two metal "tins" to form a Boston Shaker as I find them easier to open that one metal tin and a pint glass. They also recommended these two books to me (which they also sell).