I mainly used for those shots my Canon EOS 7D camera and two lenses: Canon 100mm F2.8 Macro, and Canon 50mm F1.8. Helping me to get nice bokeh and close shots for macro photography.
If you are interested in flowers photography or macro photography, I just found those books for you. Photographing Flowers: Exploring Macro Worlds with Harold Davis, Harold Davis Photographing Flowers: Inspiration Equipment Technique, Sue Bishop Macro Photography for Gardeners and Nature Lovers: The Essential Guide to Digital Techniques, Alan L. Detrick Understanding Close-Up Photography: Creative Close Encounters with Or Without a Macro Lens, Bryan Peterson