They have interviewed more than 200 blues artists, including Solomon Burke, Robert Cray, Bo Diddley, Al Green, and Zora Young.
In 1995, they produced the acoustic CD No Less Than Wireless, containing recordings by Maybe It's The Blues, The Taildraggers, Greyhound and Champagne Charlie.
Block, an amalgam of blues and rock, was first published 35 years ago by Rien Wisse and his wife Marion in the Netherlands.
The magazine is published four times a year and features articles written by American blues journalists like Bill Dahl, Dick Shurman and Scott Bock.
Finally, its 64 pages concentrate on profiles, reviews of records and performances, and the Wisse’s travels throughout the American blues landscape.