This is an excellent program for planning your skills and monitoring your skill queue. You will need to get a "EVE API Key" to do that go here:
This allows EveMon to get information about your character. It is read only access so you cannot modify skills or other things, these have to be done in game.
Once you have added your character you can click on their name and see your current skill and your current skill queue. If you use the "Full Access" key you can also monitor you buy/sell orders in the Market and manufacturing/researching in Industry.
Now to plan a career...
Click "Plans" menu and then "New". Give your Plan a name. In this example I am going to plan to fly a "Destroyer".
You now have a new window open with tabs for "Plan Queue", "Skill browser", "Certificates", "Ship browser", "Item browser", "Blueprint browser".
Click on Ship browser and you can see all available ships. Go to "Destroyers", "Gallente" then "Catalyst". This now shows all the information about that ship. In the bottom right are the skills required to fly the ship, click "Add All to Plan".
Now go to the "Plan Queue" Oh NO it's empty.. press F5 to refresh the page
. Now go back to the "Ship browser" to the "Catalyst" and you will see "Recommended Certificates". Click "Add All to Plan".
This is a nice feature that shows you the recommended skills to have when flying this ship because just having the skills to fly the ship is not enough to survive. This includes skills on armour, shields, turrets and electronics.
Now back to the "Plan Queue"... press F5 to see all the skills you need to be a great "Destroyer" pilot. At the bottom it will show the total time the skills will take to train. You will see a "Suggestion..." link at the bottom, click it and it will suggest some "Learning" skills that would make the total time be lower. You can add these to train faster.
In the "Plan Queue" you can drag and drop skills around, delete them or re-order. I like to re0order by "Training Time" so I can stack up my skill queue with the shortest time skills.