Is this one big enough for you?http://www.evilmadscientist.com/2007/led-matrix-displays/
The MAX6953 can control 4 of those 5x7 displays using just 2 IO pins, SCL & SDAhttp://www.maximintegrated.com/datasheet/index.mvp/id/3291?ver=F&utm_expid=50713806-2&utm_referrer=http%3A%2F%2Fwww.maximintegrated.com%2Fpst%2Frun.mvp%3Fq%3Dmax6953%26image.x%3D19%26image.y%3D12
Is there anything cheaper?
How about the MAX7219?
The MAX7219/MAX7221 are compact, serial input/outputcommon-cathode display drivers...http://datasheets.maximintegrated.com/en/ds/MAX7219-MAX7221.pdf
What is a BOOK?http://www.electronics-tutorials.ws/index.html
$25 is nuts - go to maxim-ic.com and request a sample in DIP footprint. The part works very nice.
There is no difference between common cathode & common anode:
Please enter a valid email to subscribe
We need to confirm your email address.
To complete the subscription, please click the link in the
email we just sent you.
Thank you for subscribing!
via Egeo 16