Living in the Past is a double album quasi-compilation collection by Jethro Tull, which contains album tracks, out-takes, the "Life Is a Long Song" EP, and all of their non-LP singles except for "Sunshine Day"/"Aeroplane" (1968), "One for John Gee" (b-side of "A Song for Jeffrey", 1968), "17" (b-side of "Sweet Dream", 1969) and the original version of "Teacher" that appeared in the UK as the b-side of "Witch's Promise" in 1969 (the re-recorded 1970 one that was released on the American version of "Benefit" was included instead). ~Hope it was helping :)
