I hope you may find the short articles helpful to give you 'bite-sized' perspectives on the Abhidhamma. All of them helped me in some way to understand just a little, and it proved enough to give me the courage and patience to tackle longer texts.
I have also included links to some of the books, texts, and websites related to Abhidhamma. Personally, I'd read the articles first. Then your own interest will take you anywhere and everywhere.
metta,
Chris
Article: Abhidhamma and Practice
http://www.abhidhamma.org/abhidhamma_and_practice.htm
Article: Be here now
http://www.abhidhamma.org/be%20here%20now.htm
Article: 'Abhidhamma Notes'
http://www.dhammastudy.com/Introduction.html
Article: Understanding Reality
http://www.abhidhamma.org/understanding%20reality.html
The Abhidhamma Philosophy (about nine pages)
http://www.buddhanet.net/abhidh01.htm
Article: Abhidhamma and Vipassana
http://www.abhidhamma.org/sitagu%20sayadaw.htm
e-books online:
http://www.vipassana.info/contents-vipassana.htm
e-Books in multiple formats on-line:
http://www.zolag.co.uk/
Articles and books graded as to level of difficulty:
http://www.dhammastudy.com/engindex.html
metta
Chris

