Basics are indeed an excellent start, but bare in mind attempting to summon any entity is not advisable. Considering if one did think you were serious, a very angry entity is not something I personally think any beginner would be suited to contend with. Especially Dragons, you do not summon them.. it's not like commanding your pet dog to come to you.
When you become better acquainted with how magick really works, you can easily find articles explaining to you how to call out and politely ask for an entity to come and confer with you. ;)
Above all else always remember, respect is key.