I have never been much of a sports person, and I wouldn't consider myself someone who reads up on the history of one, but I was captivated by 'Quidditch Through the Ages.'
From the history of the broom, to the now-endangered species of bird that the Snitch is modeled on, and the prominent teams throughout the UK, Ireland and the rest of the world, I read this book in almost one sitting, aloud to my mother.
I now feel far more informed about the sport of Quidditch and quite intrigued. Perhaps I shall pay closer attention to the sport in future. Now that I know more of the history, I find it a lot more exciting. Whisp even included a brief history of the evolution of the game in my own country, New Zealand.
I think that while I am living in the USA, I will look into the game of Quodpot. It seems like something worth seeing at least once.
I would recommend reading Kennilworthy Whisp's 'Quidditch Through the Ages' and discovering its insights for yourself. I also implore you to check out the Comic Relief Website and to look into 'Fantastic Beasts & Where to Find Them' by Newt Scamander, which is another brilliant book that gives a greater insight into the magical world.