I've noticed quite a few recent posts about doing handstands. Learning to do them the traditional way kicking your legs up against a wall can be a little iffy and possibly lead to hyper extension of the spine.
In my humble opinion it is better to work at them by facing the opposite way and doing Wall Crawls. This is an awesome exercise that gives you all the benefits of regular handstands while keeping your spine in a better position. Transitioning through from the push up position into the handstand position is also one of the best upper body exercises there is.
This is me doing them some time ago: