Anyone can please provide a complete guide of learning "Macro Photography" ?

Hi guys,
I'm an amateur photographer. I'm very interested to learn "Macro Photography". Although I took some macro shots but, I was not really satisfied with them. I googled it and found a lot of results. And couldn't find the appropriate guide. I also need to know the details about instruments which are used to take a professional look macro photographs. I'm also searching the names of some good brands of macro lens. Please, suggest macro lens in shopping place Amazon India.

Some macro snapshots [Just for example] taken by me...It's a very very novice work I think ...