1974 pamphlet by Solidarity criticising the standard left and union response to "the lump": the paying of building workers by lump sums for a job instead of union rates on national terms and conditions. Deeply controversial at the time, it criticised the slogan "Defend the unions, smash the lump!" and pointed out that the building unions agreeing to enforce a government pay freeze in "national interest" bore much responsibility for the development.
Pamphlet from January 1961 with first-hand news and accounts of the huge general strike in Belgium which was ongoing against the introduction of the "Loi Unique" which would reduce workers' purchasing power. Produced by Agitator (later renamed Solidarity) and New Generation, paper of the Young Socialist League, youth wing of the Independent Labour Party, much of it was written by Maurice Brinton under the pseudonym Martin Grainger.
A history of the Flint sit-in strike by Walter Linder, slightly abridged by Solidarity and published as Solidarity pamphlet 31 on 1 November, 1969. Walter Linder was a member of the Maoist Progressive Labor Party, whose politics are rejected by both Solidarity and libcom.org, however Solidarity published the pamphlet due to the wealth and value of the factual historical information.
A publication of discussion ongoing in Solidarity around the "ideology" of self-management in the group, including whether it could be recuperated into capitalism. The discussion followed publication of Maurice Brinton's Malaise on the left.
Anti-Vietnam war pamphlet published as pamphlet 25 by Solidarity June-July 1967, which was quite unique in the time in that it also criticised the North Vietnamese bureaucratic regime. It was later added to and superseded by the lengthier pamphlet, Vietnam: whose victory?.